On day 2, I spent a considerable amount of time networking and attend only four sessions.
Spotswap: running production APIs on Spot instance
- Amazon EC2 spot instances are cheaper than on-demand server costs. Spot instances run when the bid price is greater than market/spot instance price.
- Mapbox API server uses spot instances which are part of auto-scaling server
- Auto scaling group is configured with min, desired, max parameters.
- Latency should be low and cost effective
- EC2 has three types of instances: On demand, reserved and spot. The spot instance comes from unused space and unstable pricing.
- Spot market starts with bid price and market price.
- In winter 2015 traffic increased and price also increased increased
- To spin up a new machine with code takes almost two minutes
- Our machine fleet encompasses of spot and on-demand instances
- When one spot machine from the fleet goes down, and auto scaling group spins up an on-demand machine.
- Race condition: several instances go down at same time.
- Aggressive spin up in on-demand machines when market is volatile.
 Auto Scaling group can take care of this.
- Savings 50% to 80%
- Source code: https://github.com/mapbox/spotswap
- No latency because over-provisioned
- Set bid price as on-demand price.
- Didn’t try to increase spot instance before going on-demand
- Cfconfig to deploy and Cloud formation template from AWS
- Speaker: I’m an Accidental DBA
- The talk is a story of a Postgres debugging.
- Our services include Real-time monitoring, on demand business reporting to e-commerce players. 4000 stores and 10 million events per day. Thousands of customers in a single database.
- Postgres 9.4, M4.xlarge,16GB, 750 GB disk space with Extensive monitoring
- Reads don’t block writes, Multi-Version Concurrency Model.
- Two Clients A, B read X value as 3. When B updates the value X to 4, A reads the X value and gets back as 3. A reads the X value as 4 when B’s transaction succeeds.
- Every transaction has a unique ID - XID.
- XID - 32 bit, max transaction id is 4 billion.
- After 2 billion no transaction happens.
- All writes stop and server shutdown. Restarts in single user mode,
- Read replicas work without any issue.
- Our server reached 1 billion ids. 600k transaction per hour, so in 40 days transaction id will hit the maximum limit.
- How to prevent?
- Promote standby to master? But XID is also replicated.
- Estimate the damage - txid_current - Current Transaction ID
- Every insert and update is wrapped inside a transaction
- Now add begin and commit for a group of statements, this bought some time.
- With current rate, 60 days is left to hit max transaction limit.
- TOAST - The Oversized Attribute Storage Technique
- Aggressive maintenance. Config tweaks: autovacuum_workers, maintenance_work_mem, autovaccum_nap_time - knife to gun fight. Didn’t help
rds_superuser
prevented from modifying pg system tables- Never thought about
rds_superuser
can be an issue. - VACUUM – garbage-collect and optionally analyze a database
- vacuum freeze (*) worked. Yay!
- What may have caused issues - DB had a large number of tables. Thousands of tables
- Better
shard
per customer - Understand the
schema
better - Configuration tweaks - max_workers, nap_time, cost_limit, maintenance_work_mem
- Keep an eye out XID; Long-lived transactions are problem
- Parallel vacuum introduced in 9.5
pg_visibility
improvements in 9.6- Similar problem faced other companies like GetSentry
- Step 1 - Define the problem, know what is normal, read the manual
- Step 2: collect diagnostics data (OS, MySQL).
pt_stalk
tool to collect diagnostics error - Lookup MySQL error log when DB misbehaves.
- Check OOM killer
- General performance issues - show global variables, show global status, show indexes, profile the query
- Table corruption InnoDB, system can’t startup. Worst strategy force recovery and start from backup.
- Log message for table corruption is marked as crashed
- Replication issues - show master status, my.cnf/my.ini, show global variables, show slave status
OTR Session - Micro Service
- OTR - Off The Record session is a group discussion. Few folks come together and moderate the session. Ramya, Venkat, Ankit and Anand C where key in answering and moderating the session.
- What is service and micro service? Micro is independent, self-contained and owned by the single team. Growing code base is unmanageable, and the number of deploys increases. So break them at small scale. Ease of coupling with other teams. No clear boundary
- Advantages of Microservices - team size, easy to understand, scale it. Security aspects. Two pizza team, eight-member team. Able to pick up right tools for the job, and change the data store to experiment, fix perf issues.
- How to verify your app needs micro service?
- Functional boundary, behavior which is clear. Check out and Delivery
- PDF/Document parsing is a good candidate for Micro Service, and parsing is CPU intensive. Don’t create nano-service :-)
- Failure is inevitable. Have logic for handling failures on another service. Say when MS 1 fails MS2 code base should handle gracefully.
- Message queue Vs Simple REST service architecture. Sync Vs Async.The choice depends on the needs and functionality.
- Service discovery? Service registry and discover from them.
- Use swagger for API
- Overwhelming tooling - you can start simple and add as per requirements
- Good have to think from beginnings - how you deploy, build pipelines.
- Auth for internal services - internal auth say Service level auth and user token for certain services. Convert monolithic to modular and then micro level.
- API gateway to maintain different versions and rate limitingWhen to use role-based access and where does scope originate? Hard and no correct way. Experiment with one and move on.
- Debugging in monolithic and micro service is different.
- When you use vendor-specific software use mock service to test them. Also, use someone else micro service. Integration test for microservices are hard.
- Use continuous delivery and don’t make large number of service deployment in one release.
- The discussion went on far for 2 hours! I moved out after an hour. Very exhaustive discussion on the topic.
See also
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.


WITNESS LIST
Appropriations - S/C on Article II Committee
February 13, 2013 - 7:30 AM
Department of State Health Services
For:
Babbitt, Jerry (Self; Magnificat houses, Inc.)
Castle, Danette (Texas Council of Community Centers)
Cowan, Terry (Association Substance Abuse Programs (ASAP))
Gray, James (American Cancer Society Cancer Action Network)
Hartman, Marilyn (Self)
Lavelle, Tanya (Easter seals central texas)
Metzinger, Jane (Mental. health. America. Of Greater Dallas)
ONeill, Maeve (Phoenix House)
Teuscher, David (Texas Medical Association)
On:
Brown, Clarrence (Self; St joseph house)
Bufkin, Alice (Texans Care for Children)
Dimitry, Lauren (Texans Care for Children)
Edwards, Carol (Texas Association of Community Health Centers)
Hallmark, Laurie (Self; St. Joseph house and magnificat houses, inc.)
Hansch, Greg (NAMI Texas)
Hurt, Ricky (Self)
Keller, Merily (Self; Texas Suicide Prevention Council)
Lakey, David (Department of State Health Services)
Leblanc, David (Self; Magnificat house & neurological psychiatric center in hou,tx.)
Lewis, Kathryn (Disability Rights Texas)
Ligon, Katharine (Center for Public Policy Priorities)
Maples, Mike (Department of State Health Services)
Mcgraw, Peter (Hogg foundation for mental health)
Realini, Janet (Texas Women's Healthcare Coalition)
Saxton, Josette (Self; Texans Care for Children)
Sprinkle, Gk (Texas ambulance association)
Switzer, Gyl (Mental health america of texas)
Taylor, Allison (Office of violent sex offender management)
Thetford, Tim (Metro Dallas Homeless Alliance)
Travis, Clayton (Texans Care for Children)
Turicchi, Paula (Parkland Health and Hospital System)
Usanga, Andrea (Mental Health America of Greater Houston)
Welsh, Dinah (Texs EMS, Trauma and Acute Care Foundation; Coalition to Protect Trauma
Care)
Wheeler, Bill (Department of State Health Services)
Registering, but not testifying:
For:
Midkiff, Sabrina (Self; Epilepsy Foundation of Houston/DFW/west texas)
Romo, Joel (American Heart Association)
1
WITNESS LIST
On:
Cantu, Anavi (Self)
Delgado, Evelyn (Department of State Health Services)
House, Ed (Department of State Health Services)
Perkins, Kathy (Department of State Health Services)
Rodriguez, Olga (Department ofState Health Services)
Zumbrun, Janna (Department of State Health Services)
2


REINDEX
Section: SQL Commands (7)Updated: 2012-08-14
Index Return to Main Contents
NAME
REINDEX - rebuild indexesSYNOPSIS
REINDEX { INDEX | TABLE | DATABASE | SYSTEM } name [ FORCE ]
DESCRIPTION
REINDEX rebuilds an index using the data stored in the index's table, replacing the old copy of the index. There are several scenarios in which to use REINDEX:
- *
- An index has become corrupted, and no longer contains valid data. Although in theory this should never happen, in practice indexes can become corrupted due to software bugs or hardware failures. REINDEX provides a recovery method.
- *
- An index has become ``bloated'', that it is contains many empty or nearly-empty pages. This can occur with B-tree indexes in PostgreSQL under certain uncommon access patterns. REINDEX provides a way to reduce the space consumption of the index by writing a new version of the index without the dead pages. See in the documentation for more information.
- *
- You have altered a storage parameter (such as fillfactor) for an index, and wish to ensure that the change has taken full effect.
- *
- An index build with the CONCURRENTLY option failed, leaving an ``invalid'' index. Such indexes are useless but it can be convenient to use REINDEX to rebuild them. Note that REINDEX will not perform a concurrent build. To build the index without interfering with production you should drop the index and reissue the CREATE INDEX CONCURRENTLY command.
PARAMETERS
- INDEX
- Recreate the specified index.
- TABLE
- Recreate all indexes of the specified table. If the table has a secondary ``TOAST'' table, that is reindexed as well.
- DATABASE
- Recreate all indexes within the current database. Indexes on shared system catalogs are skipped except in stand-alone mode (see below). This form of REINDEX cannot be executed inside a transaction block.
- SYSTEM
- Recreate all indexes on system catalogs within the current database. Indexes on user tables are not processed. Also, indexes on shared system catalogs are skipped except in stand-alone mode (see below). This form of REINDEX cannot be executed inside a transaction block.
- name
- The name of the specific index, table, or database to be reindexed. Index and table names can be schema-qualified. Presently, REINDEX DATABASE and REINDEX SYSTEM can only reindex the current database, so their parameter must match the current database's name.
- FORCE
- This is an obsolete option; it is ignored if specified.
NOTES
If you suspect corruption of an index on a user table, you can simply rebuild that index, or all indexes on the table, using REINDEX INDEX or REINDEX TABLE.
Things are more difficult if you need to recover from corruption of an index on a system table. In this case it's important for the system to not have used any of the suspect indexes itself. (Indeed, in this sort of scenario you might find that server processes are crashing immediately at start-up, due to reliance on the corrupted indexes.) To recover safely, the server must be started with the -P option, which prevents it from using indexes for system catalog lookups.
One way to do this is to shut down the server and start a single-user PostgreSQL server with the -P option included on its command line. Then, REINDEX DATABASE, REINDEX SYSTEM, REINDEX TABLE, or REINDEX INDEX can be issued, depending on how much you want to reconstruct. If in doubt, use REINDEX SYSTEM to select reconstruction of all system indexes in the database. Then quit the single-user server session and restart the regular server. See the postgres(1) reference page for more information about how to interact with the single-user server interface.
Alternatively, a regular server session can be started with -P included in its command line options. The method for doing this varies across clients, but in all libpq-based clients, it is possible to set the PGOPTIONS environment variable to -P before starting the client. Note that while this method does not require locking out other clients, it might still be wise to prevent other users from connecting to the damaged database until repairs have been completed.
If corruption is suspected in the indexes of any of the shared system catalogs (which are pg_authid, pg_auth_members, pg_database, pg_pltemplate, pg_shdepend, pg_shdescription, and pg_tablespace), then a standalone server must be used to repair it. REINDEX will not process shared catalogs in multiuser mode.
For all indexes except the shared system catalogs, REINDEX is crash-safe and transaction-safe. REINDEX is not crash-safe for shared indexes, which is why this case is disallowed during normal operation. If a failure occurs while reindexing one of these catalogs in standalone mode, it will not be possible to restart the regular server until the problem is rectified. (The typical symptom of a partially rebuilt shared index is ``index is not a btree'' errors.)
REINDEX is similar to a drop and recreate of the index in that the index contents are rebuilt from scratch. However, the locking considerations are rather different. REINDEX locks out writes but not reads of the index's parent table. It also takes an exclusive lock on the specific index being processed, which will block reads that attempt to use that index. In contrast, DROP INDEX momentarily takes exclusive lock on the parent table, blocking both writes and reads. The subsequent CREATE INDEX locks out writes but not reads; since the index is not there, no read will attempt to use it, meaning that there will be no blocking but reads might be forced into expensive sequential scans.
Reindexing a single index or table requires being the owner of that index or table. Reindexing a database requires being the owner of the database (note that the owner can therefore rebuild indexes of tables owned by other users). Of course, superusers can always reindex anything.
Prior to PostgreSQL 8.1, REINDEX DATABASE processed only system indexes, not all indexes as one would expect from the name. This has been changed to reduce the surprise factor. The old behavior is available as REINDEX SYSTEM.
Prior to PostgreSQL 7.4, REINDEX TABLE did not automatically process TOAST tables, and so those had to be reindexed by separate commands. This is still possible, but redundant.
EXAMPLES
Rebuild a single index:
REINDEX INDEX my_index;
Rebuild all the indexes on the table my_table:
REINDEX TABLE my_table;
Rebuild all indexes in a particular database, without trusting the system indexes to be valid already:
$ export PGOPTIONS="-P" $ psql broken_db broken_db=> REINDEX DATABASE broken_db; broken_db=> \q
COMPATIBILITY
There is no REINDEX command in the SQL standard.
Index
This document was created by man2html, using the manual pages.
Time: 05:34:16 GMT, December 24, 2015


Home
About
Newsletter
RSS
Mack and Mike in the morning
🎵 Subscribe and rate us on iTunes!
itunes.apple.com/us/podcast/mack-and-mike-in-the-morning/id1435714603
Hate our email spam? Unsubscribe here!
Email address
Submit


#!/usr/bin/env python3
# Copyright 2019 Christian Henning
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Adding custom functions to PyTorch's autograd
---------------------------------------------
The module :mod:`lib.backprop_functions` contains custom implementations of
neural network components (layers, activation functions, loss functions, ...),
that are compatible with PyTorch its autograd_ package.
A new functionality can be added to autograd_ by creating a subclass of class
:class:`torch.autograd.Function`. In particular, we have to implement the
:meth:`torch.autograd.Function.forward` method (which computes the output of a
differentiable function) and the :meth:`torch.autograd.Function.backward`
method (which computes the partial derivatives of the output of the implemented
:meth:`torch.autograd.Function.forward` method with respect to all input tensors
that are flagged to require gradients).
Please checkout the corresponding documentation of class
:class:`torch.autograd.Function`.
.. autosummary::
lib.backprop_functions.LinearFunction
lib.backprop_functions.linear_function
lib.backprop_functions.SigmoidFunction
lib.backprop_functions.sigmoid_function
lib.backprop_functions.MSELossFunction
lib.backprop_functions.mse_loss
.. _autograd:
https://pytorch.org/tutorials/beginner/blitz/autograd_tutorial.html
"""
import torch
from torch.autograd import Function
[docs]class LinearFunction(Function):
r"""Implementation of a fully-connected layer w/o activation function.
This class is a ``Function`` that behaves just like PyTorch's class
:class:`torch.nn.Linear`. Since this class implements the interface
:class:`torch.autograd.Function`, we can use it to specify a custom
backpropagation behavior.
In this specific case, the ``Function`` shall behave just as in classic
backpropagation (i.e., it shall behave identical to the proprietory PyTorch
implementation).
Assuming column vectors: layer input :math:`\mathbf{a} \in \mathbb{R}^M`,
bias vector :math:`\mathbf{b} \in \mathbb{R}^N` and a weight matrix
:math:`W \in \mathbb{R}^{N \times M}`, this layer simply computes
.. math::
:label: eq-single-sample
\mathbf{z} = W \mathbf{a} + \mathbf{b}
(or :math:`\mathbf{z} = W \mathbf{a}` if :math:`\mathbf{b}` is ``None``).
Note, since we want to process mini-batches (containing :math:`B` samples
each), the input to the :meth:`forward` method is actually a set of samples
:math:`\mathbf{a}` collected into a matrix
:math:`A \in \mathbb{R}^{B \times M}`.
We additionally introduce the matrix
:math:`\tilde{B} \in \mathbb{R}^{B \times N}` which simply contains copies
of the bias vector :math:`\mathbf{b}` in its rows.
The mathematical operation described for single samples in eq.
:eq:`eq-single-sample`, is stated for a the case of mini-batches below
.. math::
:label: eq-mini-batch
Z = A W^T + \tilde{B}
where :math:`Z \in \mathbb{R}^{B \times N}` is the output matrix.
"""
[docs] @staticmethod
def forward(ctx, A, W, b=None):
r"""Compute the output of a linear layer.
This method implements eq. :eq:`eq-mini-batch`.
Args:
ctx: A context. Should be used to store activations which are needed
in the backward pass.
A: A mini-batch of input activations :math:`A`.
W: The weight matrix :math:`W`.
b (optional): The bias vector :math:`\mathbf{b}`.
Returns:
The output activations :math:`Z` as defined by eq.
:eq:`eq-mini-batch`.
"""
ctx.save_for_backward(A, W, b)
raise NotImplementedError('TODO implement')
# Z = ...
# return Z
[docs] @staticmethod
def backward(ctx, grad_Z):
r"""Backpropagate the gradients of :math:`Z` through this linear layer.
The matrix ``grad_Z``, which we denote by
:math:`\delta_Z \in \mathbb{R}^{B \times N}`, contains the partial
derivatives of the scalar loss function with respect to each element
from the :meth:`forward` output matrix :math:`Z`.
This method backpropagates the global error (encoded in
:math:`\delta_Z`) to all input tensors of the :meth:`forward` method,
essentially computing :math:`\delta_A`, :math:`\delta_W`,
:math:`\delta_\mathbf{b}`.
As shown in the tutorial, these partial derivatives can be computed as
follows:
.. math::
\delta_A &= \delta_Z W \\
\delta_W &= \delta_Z^T A \\
\delta_\mathbf{b} &= \sum_{b=1}^B \delta_{Z_{b,:}}
where :math:`\delta_{Z_{b,:}}` denotes the vector retrieved from the
:math:`b`-th row of :math:`\delta_Z`.
Args:
ctx: See description of argument ``ctx`` of method :meth:`forward`.
grad_Z: The backpropagated error :math:`\delta_Z`.
Returns:
(tuple): Tuple containing:
- **grad_A**: The derivative of the loss with respect to the input
activations, i.e., :math:`\delta_A`.
- **grad_W**: The derivative of the loss with respect to the weight
matrix, i.e., :math:`\delta_W`.
- **grad_b**: The derivative of the loss with respect to the bias
vector, i.e., :math:`\delta_\mathbf{b}`; or ``None`` if ``b`` was
passed as ``None`` to the :meth:`forward` method.
.. note::
Gradients for input tensors are only computed if their keyword
``requires_grad`` is set to ``True``, otherwise ``None`` is
returned for the corresponding Tensor.
"""
A, W, b = ctx.saved_tensors
grad_A = None
grad_W = None
grad_b = None
# We only need to compute gradients for tensors that are flagged to
# require gradients!
if ctx.needs_input_grad[0]:
raise NotImplementedError('TODO implement')
# grad_A = ...
if ctx.needs_input_grad[1]:
raise NotImplementedError('TODO implement')
# grad_W = ...
if b is not None and ctx.needs_input_grad[2]:
raise NotImplementedError('TODO implement')
# grad_b = ...
return grad_A, grad_W, grad_b
[docs]def linear_function(A, W, b=None):
"""An alias for using class :class:`LinearFunction`.
Args:
(....): See docstring of method :meth:`LinearFunction.forward`.
"""
# Note, `apply()` doesn't allow keyword arguments, which is why we build
# this wrapper.
if b is None:
return LinearFunction.apply(A, W)
else:
return LinearFunction.apply(A, W, b)
[docs]class SigmoidFunction(Function):
r"""Implementation of a sigmoid non-linearity.
This ``Function`` applies a sigmoid_ function as non-linearity to a vector
of activations :math:`\mathbf{z}` (e.g., the output of a linear layer
:class:`LinearFunction`).
This function (denoted by :math:`\sigma(\cdot)`) operates element-wise when
computing the output activations :math:`\mathbf{a}`:
.. math::
\mathbf{a} = \sigma(\mathbf{z})
Similarly to the notation used in the docstring of class
:class:`LinearFunction`, we consider a mini-batch of input activations
given as a matrix :math:`Z` and denote the corresponding output activations
by :math:`A`.
Example:
Consider the output activation :math:`A^{(l-1)}` of layer :math:`l-1`.
Assuming a linear layer with sigmoid non-linearity, the output
activations :math:`A^{(l)}` of layer :math:`l` are computed as
.. math::
A^{(l)} = \sigma(Z^{(l)}) = \sigma(A^{(l-1)} W^{(l), T} + b^{(l)})
.. _sigmoid: https://en.wikipedia.org/wiki/Sigmoid_function
"""
[docs] @staticmethod
def forward(ctx, Z):
r"""Applies the sigmoid function element-wise to ``Z``.
Args:
ctx: See description of argument ``ctx`` of method
:meth:`LinearFunction.forward`.
Z: The input activations to this non-linearity, i.e., the matrix
:math:`Z`.
Returns:
The output activations :math:`A = \sigma(Z)`.
"""
ctx.save_for_backward(Z)
raise NotImplementedError('TODO implement')
# A = ...
# return A
[docs] @staticmethod
def backward(ctx, grad_A):
r"""Backpropagate gradients through sigmoid-nonlinearity.
In this method, we compute the backprop-error :math:`\delta_Z` given the
error :math:`\delta_A`, which is the derivative of the global scalar
loss with respect to the output of the :meth:`forward` method.
As shown in the tutorial, this partial derivative can be computed as
follows:
.. math::
\delta_Z = \delta_A \odot \sigma^{'}(Z)
where the function :math:`\sigma^{'}(\cdot)` applies the derivative of
the sigmoid non-linearity element-wise to its input tensor. The operator
:math:`\odot` denotes the Hadamard_ product (element-wise product).
.. _Hadamard: https://en.wikipedia.org/wiki/Hadamard_product_(matrices)
Args:
ctx: See description of argument ``ctx`` of method
:meth:`LinearFunction.forward`.
grad_A: The backpropagated error :math:`\delta_A`.
Returns:
The derivative of the loss with respect to the input activations
:math:`Z`, i.e., :math:`\delta_Z`.
.. note::
Gradients for input tensors are only computed if their keyword
``requires_grad`` is set to ``True``, otherwise ``None`` is
returned for the corresponding Tensor.
"""
Z, = ctx.saved_tensors
grad_Z = None
# We only need to compute gradients for tensors that are flagged to
# require gradients!
if ctx.needs_input_grad[0]:
raise NotImplementedError('TODO implement')
# grad_Z = ...
return grad_Z
sigmoid_function = SigmoidFunction.apply
"""An alias for using class :class:`SigmoidFunction`."""
[docs]class MSELossFunction(Function):
r"""Implementation of a mean-squared-error (MSE) loss.
Assuming a set of input activations in form of a matrix
:math:`A \in \mathbb{R}^{B \times M}`, where :math:`B` denotes the size of
the mini-batch and :math:`M` the size of each sample. Additionally, this
``Function`` requires a set of target activations
:math:`T \in \mathbb{R}^{B \times M}`.
This method computes
.. math::
\mathcal{L}(A, T) = \frac{1}{B} \sum_{b = 1}^B \frac{1}{2} \lVert
A_{b,:} - T_{b,:} \rVert^2
where :math:`A_{b,:}` denotes the :math:`b`-th row of matrix :math:`A`.
"""
[docs] @staticmethod
def forward(ctx, A, T):
r"""Computes the MSE loss between activations :math:`A` and targets
:math:`T`: :math:`\mathcal{L}(A, T)`.
Args:
ctx: See description of argument ``ctx`` of method
:meth:`LinearFunction.forward`.
A: The input activations, i.e., the matrix :math:`A`.
T: The target activations, i.e., the matrix :math:`T`.
.. note::
Normally, targets will be constant values, that we do not
wish to backpropagate through (i.e., the keyword
``requires_grad`` will be set to ``False``). For reasons of
generality, this ``Function`` will also allow the
backpropagation through targets, the keyword
``requires_grad`` of parameter ``T`` is set to ``True``.
Returns:
A scalar loss value ``L`` denoting the computed MSE value.
"""
ctx.save_for_backward(A, T)
raise NotImplementedError('TODO implement')
# L = ...
# return L
[docs] @staticmethod
def backward(ctx, grad_L):
r"""Backpropagate gradients through MSE loss.
The input ``grad_L`` is the derivative :math:`\delta_L` of the final
global scalar loss with respect to the scalar output of the
:meth:`forward` method.
If the :meth:`forward` is used to compute the final loss from which the
backpropagation algorithm starts, then PyTorch will pass the value ``1``
for the parameter ``grad_L``.
As shown in the tutorial, the partial derivative :math:`\delta_A` can be
computed via
.. math::
\delta_A = \frac{1}{B} (A - T)
Hence, :math:`\delta_T` can be computed analoguously.
Args:
ctx: See description of argument ``ctx`` of method
:meth:`LinearFunction.forward`.
grad_A: The backpropagated error :math:`\delta_A`.
Returns:
(tuple): Tuple containing:
- **grad_A**: The derivative of the loss with respect to the input
activations, i.e., :math:`\delta_A`.
- **grad_T**: The derivative of the loss with respect to the target
activations, i.e., :math:`\delta_T`.
.. note::
Gradients for input tensors are only computed if their keyword
``requires_grad`` is set to ``True``, otherwise ``None`` is
returned for the corresponding Tensor.
"""
A, T = ctx.saved_tensors
grad_A = None
grad_T = None
# We only need to compute gradients for tensors that are flagged to
# require gradients!
if ctx.needs_input_grad[0]:
raise NotImplementedError('TODO implement')
# grad_A = ...
if ctx.needs_input_grad[1]:
raise NotImplementedError('TODO implement')
# grad_T = ...
# return grad_A, grad_T
mse_loss = MSELossFunction.apply
"""An alias for using class :class:`MSELossFunction`."""
if __name__ == '__main__':
pass


Rec-PAC 2017
Staff documents
Smile! Rec-PAC is in session.
Last summer, over 4,000 kids played their way through weeks of healthy fun at Rec-PAC sites across the county.
» DOWNLOAD Registration Packet
- Register On-Line
- Register by Phone<PHONE_NUMBER>. TTY<PHONE_NUMBER>
- Mail to: Fairfax County Park Authority, Attn: Rec-PAC, P.O Box 4606, Fairfax, VA 22038
- Fax Number:<PHONE_NUMBER>
- See Parktakes Magazine mailing label for your member number
- A separate registration form is needed for each child. There is no maximum enrollment at Rec-PAC sites. Staff will be added to accommodate as needed.
WALK-IN REGISTRATION
Beginning July 5, registration may be done only at Rec-PAC sites on Mondays upon arrival. See location list for site times.
How do I pay for Rec-PAC?
Check, money order or credit card only. No cash or debit cards accepted. Make checks payable to FCPA. Pre-registration or paying for several weeks at one time is highly recommended to make registration easier.
REFUNDS
Requests received prior to the start of a Rec-PAC session can be processed by phone, mail or fax. Once a session begins, refunds will be given only for medical emergencies with a doctor’s certification. Absences and personal scheduling conflicts are not reimbursable. A $10 processing fee per child, per week, will be applied to all approved refunds. Approved refunds will be credited to your Parktakes member account.
Locations
About
About Rec-PAC
Rec-PAC (Pretty Awesome Children), operated by Fairfax County Park Authority, is a six week structured recreation program with emphasis on leisure skills designed for elementary school children.
Participants will have an opportunity to enjoy a wide variety of activities such as: fun and fitness, indoor and outdoor games, team sports, nature, crafts, storytelling, sports festivals, talent shows and supervised play sessions. Each location has a ratio of 1 staff person to 18 participants.
Join us for 6 exciting weeks of Summer Fun in 2017!
Week 1 (7/5-7/7)
July 3rd and 4th CLOSED United We Stand Hooray for the Red, White and Blue. Join us as we celebrate America through arts, games and sports. Rec-PAC is closed July 3rd and 4th.
Week 2 (7/10-7/14)
We’ve got SPIRIT, how about YOU? Show your PAC pride on these fun-filled theme days: crazy hair, crazy socks, team jersey, ping pong table decorating. Meet and learn about Buddy the Wolf and enjoy a teambuilding field day. Special Event: Field Day
Week 3 (7/17-7/21)
Pirate Adventure! Ahoy Mateys! Come aboard and create colorful parrots, creative sand art, treasure maps and sea monsters. Along the way play games, sing songs and use teamwork to find the lost Pirate Island where there are cool games and prizes for all!! Five days of fun and adventure. Special Event: Lost Pirate Island Party
Week 4 (7/24-7/28)
Come on Down! Calling all game show contestants! Are you ready for a week of fun and exciting game shows? Do you have what it takes to win, lose or draw? Or even have a minute to win it? Then this is the week for you. Special Event: Game Show Mania
Week 5 (7/31-8/4)
Adventures Away! Explore the outdoors through painting, collage, drawing and more. Use a variety of art media to create icky bugs. Join us as we design a wonderful forest full of creative creatures
Week 6 (8/7-8/10)
Rec-PAC Gives Back! Rec-PAC needs YOU!! Come make a difference as you and your friends get involved in the community in which you live. This community service week is all about helping others and giving back. Join us at the Rec-PAC Showcase for a camper performance. Special Event: RPS (Rec-PAC Showcase) No Rec-PAC on August 11th.
Staff
Meet Our Staff
Mike Bonneville grew up with Rec-PAC. He was a camper, counselor, site director and area supervisor for Rec-PAC before becoming the manager of this county-wide summer activity program in 2007. He didn’t plan a Rec-PAC career; he was pushed in that direction by his goals – to make a difference and to help kids in Fairfax County. Towards that end, Mike also worked with children with disabilities in the Arlington County public schools for seven years, with after-school programs and summer programs for emotionally disturbed children and at teen centers on Friday and Saturday nights. “Kids have been my passion,” he explained. “Even more so now that I’m the parent of two amazing kids! And the Rec-PAC program, its campers and staff are just an extension of my family.” Born and raised in Fairfax County, Mike still lives in the Northern Virginia area.
Your job as Rec-PAC’s manager? I oversee 181 volunteers, 350 camp staffers, eight area supervisors, four office staffers and 3,000 kids a week. I make sure that our kids are in a safe environment, having fun while they learn and enjoy recreation. I love my job! I get paid for coming up with entertaining and creative things for kids to do and putting those ideas into action. It’s like being a kid again. It keeps me young. There’s a quote that explains it perfectly: “If you love your job, you will never work a day in your life.” That is how I feel about my position with the Park Authority. I get the opportunity to work with some the best people in the county, all striving towards one propose – to better the lives of the families in Fairfax County.
What do kids learn in Rec-PAC? They learn that character counts. We’ve incorporated that national program, with its emphasis on the six pillars of character (citizenship, respect, trustworthiness, fairness, caring and responsibility). We get a diverse group of kids so we have an international week to give our campers a better understanding of different cultures. We do cooperative game playing to open their minds, and because kids need to be outside, we teach them active outdoor games that they can play in a group or on their own. They learn about fitness, too, through games and obstacle courses, and by eating healthy snacks and juice, not high calorie junk food and sodas. We also talk with the campers about Bullying and what to do if they are being bullied or see someone being bullied. To take a stand and lend a hand to those in need.
Your philosophy for managing Rec-PAC? When you work with children, you should be held to higher standards. Kids need positive examples; they deserve good role models. That’s a priority for our counselors. Parents pay with their hard earned money for the program – they should be given the best customer service and their children should be provided with the best quality care.
Best thing about Rec-PAC? The staff, the children who attend and the parents of those children. Rec-PAC is a big family. Every child is treated with respect and care, and we try to open their minds to their own creativity. There’s a lot of camaraderie. It is wonderful to see children trying new activities that they have never done before and excelling in them. I like to watch the staff work as a team to try new things. It’s a great thing to see veteran staff helping new staff. Summer is the best time of the year! At Rec-PAC, kids get the opportunity to learn many new things and teach us new things as well.
Binder
Staff Binder
OVERVIEW
Registration Table
- B01* – Registration Form
- B02 – Registration Renewal Form
- B03* – Rules of Conduct / Behavior (English)
- B04* – Rules of Conduct / Behavior (Spanish)
- B05 – T-Shirt Order Form
- B06 – Refund Request Form
- B07 – Tax ID Receipt
- B08 – Parent Feedback Form
Health & Safety
- C01* – Incident Report
- C02 – Injury Report
- C03 – Injury Letter to Parent
- C04* – EpiPen & Inhaler Authorization Form
- C05* – EpiPen & Allergies Procedures
- C06 – Allergies Record
- C07 – Disciplinary Actions & Dismissal Procedures
Letters to Parents
- D01* – Parents Guide to Rec-PAC Policies
- D02* – Disciplinary Letter #1 (English / Spanish)
- D03* – Disciplinary Letter #2 (English / Spanish)
- D04* – Disciplinary Letter #3 (English / Spanish)
- D05* – Late Letter #1 Fee Waived (English / Spanish)
- D06* – Late Letter #2 Payment Due (English / Spanish)
- D07* – Lice Letter to All Parents (English / Spanish)
- D08 – Lice Letter to Affected Child’s Parents
- D09 – Lice Treatment Verification Form
- D10* – Isolated Case of Illness Letter (English / Spanish)
SIGNS & FLYERS
- E01 – Snack Prices
- E02 – Door Sign
- E03 – Weekly Flyer Example
- E04 – Field Day Award Certificate
- E05 – International Feast Ingredients List
- E06 – Rec-PAC Showcase Invitation
Director Paperwork
- F01 – Director’s Paperwork Checklist
- F02 – Registration Notes + Payment Chart
- F03 – Walk-In Registration Report
- F04 – Camper Sign-In/Out Sheet
- F05 – Director’s Attendance Log
- F06 – Director’s Daily Notes
- F07* – Weekly Planning Sheet / Schedule
- F08 – Snack Sales Options
- F09* – Snack Income & Expenses Procedures
- F10 – Income and Expenditures Log
- F11 – Fire & Lockdown Drills Log
- F12 – Walking Field Trip Request Form
- F13 – Volunteer Form for Field Trips
- F14 – Behavior Management Plan
- F15 – Paw Prints
Staff Paperwork
- G01* – Timesheets
- G02* – Staff Rules of Conduct
- G03 – Staff Recognition Form
- G04 – Employee Action Plan
- G05 – Leader Observation Checklist
- G06 – Director Observation Checklist
- G07 – Leader Performance Evaluation
- G08 – Director Performance Evaluation
- G09* – Program Evaluation by Staff
CIT Paperwork
- H01 – CIT Participation Checklist
- H02 – CIT Action Plan
- H03 – CIT Evaluation
- H04 – CIT Service Hours Letter
SITE Paperwork
- I01* – Inventory List
- I02 – Procedure for Green Box & Disposal of Items
- I03 – Facility Check-Out Form
- I04 – Playground Safety Checklist
- I05 – Request for Supplies or Services
- I06 – Property Loss of Notice
- I07 – Letter to Local Businesses
- I08 – Workplace Violence Memo
- I09* – Workers Compensation Procedures
* = front & back OR multiple pages in sleeve
Ideas
Submit your idea!
All Submissions
Name: Ravi
Area: Area C
School: Centre Ridge
Ideatype: Special Event
Message: American Ninja Warrior! Get a lot of obstacles and lay them out.


You can contact the lumol's developer by email at [Turn on JavaScript to see the email address]. You can also use the project chat room to ask any question.


public final class DataFrameStatFunctions
extends Object
DataFrame
s.
| Modifier and Type | Method and Description |
|---|---|
double[][] |
approxQuantile(String[] cols,
double[] probabilities,
double relativeError)
Calculates the approximate quantiles of numerical columns of a DataFrame.
|
double[] |
approxQuantile(String col,
double[] probabilities,
double relativeError)
Calculates the approximate quantiles of a numerical column of a DataFrame.
|
BloomFilter |
bloomFilter(Column col,
long expectedNumItems,
double fpp)
Builds a Bloom filter over a specified column.
|
BloomFilter |
bloomFilter(Column col,
long expectedNumItems,
long numBits)
Builds a Bloom filter over a specified column.
|
BloomFilter |
bloomFilter(String colName,
long expectedNumItems,
double fpp)
Builds a Bloom filter over a specified column.
|
BloomFilter |
bloomFilter(String colName,
long expectedNumItems,
long numBits)
Builds a Bloom filter over a specified column.
|
double |
corr(String col1,
String col2)
Calculates the Pearson Correlation Coefficient of two columns of a DataFrame.
|
double |
corr(String col1,
String col2,
String method)
Calculates the correlation of two columns of a DataFrame.
|
CountMinSketch |
countMinSketch(Column col,
double eps,
double confidence,
int seed)
Builds a Count-min Sketch over a specified column.
|
CountMinSketch |
countMinSketch(Column col,
int depth,
int width,
int seed)
Builds a Count-min Sketch over a specified column.
|
CountMinSketch |
countMinSketch(String colName,
double eps,
double confidence,
int seed)
Builds a Count-min Sketch over a specified column.
|
CountMinSketch |
countMinSketch(String colName,
int depth,
int width,
int seed)
Builds a Count-min Sketch over a specified column.
|
double |
cov(String col1,
String col2)
Calculate the sample covariance of two numerical columns of a DataFrame.
|
Dataset<Row> |
crosstab(String col1,
String col2)
Computes a pair-wise frequency table of the given columns.
|
Dataset<Row> |
freqItems(scala.collection.Seq<String> cols)
(Scala-specific) Finding frequent items for columns, possibly with false positives.
|
Dataset<Row> |
freqItems(scala.collection.Seq<String> cols,
double support)
(Scala-specific) Finding frequent items for columns, possibly with false positives.
|
Dataset<Row> |
freqItems(String[] cols)
Finding frequent items for columns, possibly with false positives.
|
Dataset<Row> |
freqItems(String[] cols,
double support)
Finding frequent items for columns, possibly with false positives.
|
<T> Dataset<Row> |
sampleBy(String col,
java.util.Map<T,Double> fractions,
long seed)
Returns a stratified sample without replacement based on the fraction given on each stratum.
|
<T> Dataset<Row> |
sampleBy(String col,
scala.collection.immutable.Map<T,Object> fractions,
long seed)
Returns a stratified sample without replacement based on the fraction given on each stratum.
|
public double[] approxQuantile(String col, double[] probabilities, double relativeError)
The result of this algorithm has the following deterministic bound:
If the DataFrame has N elements and if we request the quantile at probability p
up to error
err
, then the algorithm will return a sample x
from the DataFrame so that the *exact* rank
of x
is close to (p * N).
More precisely,
floor((p - err) * N) <= rank(x) <= ceil((p + err) * N)
This method implements a variation of the Greenwald-Khanna algorithm (with some speed optimizations). The algorithm was first present in Space-efficient Online Computation of Quantile Summaries by Greenwald and Khanna.
col
- the name of the numerical columnprobabilities
- a list of quantile probabilities
Each number must belong to [0, 1].
For example 0 is the minimum, 0.5 is the median, 1 is the maximum.relativeError
- The relative target precision to achieve (greater than or equal to 0).
If set to zero, the exact quantiles are computed, which could be very expensive.
Note that values greater than 1 are accepted but give the same result as 1.public double[][] approxQuantile(String[] cols, double[] probabilities, double relativeError)
cols
- the names of the numerical columnsprobabilities
- a list of quantile probabilities
Each number must belong to [0, 1].
For example 0 is the minimum, 0.5 is the median, 1 is the maximum.relativeError
- The relative target precision to achieve (greater than or equal to 0).
If set to zero, the exact quantiles are computed, which could be very expensive.
Note that values greater than 1 are accepted but give the same result as 1.approxQuantile(col:Str* approxQuantile)
for detailed description.
public double cov(String col1, String col2)
col1
- the name of the first columncol2
- the name of the second column
val df = sc.parallelize(0 until 10).toDF("id").withColumn("rand1", rand(seed=10))
.withColumn("rand2", rand(seed=27))
df.stat.cov("rand1", "rand2")
res1: Double = 0.065...
public double corr(String col1, String col2, String method)
col1
- the name of the columncol2
- the name of the column to calculate the correlation againstmethod
- (undocumented)
val df = sc.parallelize(0 until 10).toDF("id").withColumn("rand1", rand(seed=10))
.withColumn("rand2", rand(seed=27))
df.stat.corr("rand1", "rand2")
res1: Double = 0.613...
public double corr(String col1, String col2)
col1
- the name of the columncol2
- the name of the column to calculate the correlation against
val df = sc.parallelize(0 until 10).toDF("id").withColumn("rand1", rand(seed=10))
.withColumn("rand2", rand(seed=27))
df.stat.corr("rand1", "rand2", "pearson")
res1: Double = 0.613...
public Dataset<Row> crosstab(String col1, String col2)
col1
and the column names will
be the distinct values of col2
. The name of the first column will be col1_col2
. Counts
will be returned as Long
s. Pairs that have no occurrences will have zero as their counts.
Null elements will be replaced by "null", and back ticks will be dropped from elements if they
exist.
col1
- The name of the first column. Distinct items will make the first item of
each row.col2
- The name of the second column. Distinct items will make the column names
of the DataFrame.
val df = spark.createDataFrame(Seq((1, 1), (1, 2), (2, 1), (2, 1), (2, 3), (3, 2), (3, 3)))
.toDF("key", "value")
val ct = df.stat.crosstab("key", "value")
ct.show()
+---------+---+---+---+
|key_value| 1| 2| 3|
+---------+---+---+---+
| 2| 2| 0| 1|
| 1| 1| 1| 0|
| 3| 0| 1| 1|
+---------+---+---+---+
public Dataset<Row> freqItems(String[] cols, double support)
support
should be greater than 1e-4.
This function is meant for exploratory data analysis, as we make no guarantee about the
backward compatibility of the schema of the resulting DataFrame
.
cols
- the names of the columns to search frequent items in.support
- The minimum frequency for an item to be considered frequent
. Should be greater
than 1e-4.
val rows = Seq.tabulate(100) { i =>
if (i % 2 == 0) (1, -1.0) else (i, i * -1.0)
}
val df = spark.createDataFrame(rows).toDF("a", "b")
// find the items with a frequency greater than 0.4 (observed 40% of the time) for columns
// "a" and "b"
val freqSingles = df.stat.freqItems(Array("a", "b"), 0.4)
freqSingles.show()
+-----------+-------------+
|a_freqItems| b_freqItems|
+-----------+-------------+
| [1, 99]|[-1.0, -99.0]|
+-----------+-------------+
// find the pair of items with a frequency greater than 0.1 in columns "a" and "b"
val pairDf = df.select(struct("a", "b").as("a-b"))
val freqPairs = pairDf.stat.freqItems(Array("a-b"), 0.1)
freqPairs.select(explode($"a-b_freqItems").as("freq_ab")).show()
+----------+
| freq_ab|
+----------+
| [1,-1.0]|
| ... |
+----------+
public Dataset<Row> freqItems(String[] cols)
default
support of 1%.
This function is meant for exploratory data analysis, as we make no guarantee about the
backward compatibility of the schema of the resulting DataFrame
.
cols
- the names of the columns to search frequent items in.public Dataset<Row> freqItems(scala.collection.Seq<String> cols, double support)
This function is meant for exploratory data analysis, as we make no guarantee about the
backward compatibility of the schema of the resulting DataFrame
.
cols
- the names of the columns to search frequent items in.support
- (undocumented)
val rows = Seq.tabulate(100) { i =>
if (i % 2 == 0) (1, -1.0) else (i, i * -1.0)
}
val df = spark.createDataFrame(rows).toDF("a", "b")
// find the items with a frequency greater than 0.4 (observed 40% of the time) for columns
// "a" and "b"
val freqSingles = df.stat.freqItems(Seq("a", "b"), 0.4)
freqSingles.show()
+-----------+-------------+
|a_freqItems| b_freqItems|
+-----------+-------------+
| [1, 99]|[-1.0, -99.0]|
+-----------+-------------+
// find the pair of items with a frequency greater than 0.1 in columns "a" and "b"
val pairDf = df.select(struct("a", "b").as("a-b"))
val freqPairs = pairDf.stat.freqItems(Seq("a-b"), 0.1)
freqPairs.select(explode($"a-b_freqItems").as("freq_ab")).show()
+----------+
| freq_ab|
+----------+
| [1,-1.0]|
| ... |
+----------+
public Dataset<Row> freqItems(scala.collection.Seq<String> cols)
default
support of 1%.
This function is meant for exploratory data analysis, as we make no guarantee about the
backward compatibility of the schema of the resulting DataFrame
.
cols
- the names of the columns to search frequent items in.public <T> Dataset<Row> sampleBy(String col, scala.collection.immutable.Map<T,Object> fractions, long seed)
col
- column that defines stratafractions
- sampling fraction for each stratum. If a stratum is not specified, we treat
its fraction as zero.seed
- random seedDataFrame
that represents the stratified sample
val df = spark.createDataFrame(Seq((1, 1), (1, 2), (2, 1), (2, 1), (2, 3), (3, 2),
(3, 3))).toDF("key", "value")
val fractions = Map(1 -> 1.0, 3 -> 0.5)
df.stat.sampleBy("key", fractions, 36L).show()
+---+-----+
|key|value|
+---+-----+
| 1| 1|
| 1| 2|
| 3| 2|
+---+-----+
public <T> Dataset<Row> sampleBy(String col, java.util.Map<T,Double> fractions, long seed)
col
- column that defines stratafractions
- sampling fraction for each stratum. If a stratum is not specified, we treat
its fraction as zero.seed
- random seedDataFrame
that represents the stratified sample
public CountMinSketch countMinSketch(String colName, int depth, int width, int seed)
colName
- name of the column over which the sketch is builtdepth
- depth of the sketchwidth
- width of the sketchseed
- random seedCountMinSketch
over column colName
public CountMinSketch countMinSketch(String colName, double eps, double confidence, int seed)
colName
- name of the column over which the sketch is builteps
- relative error of the sketchconfidence
- confidence of the sketchseed
- random seedCountMinSketch
over column colName
public CountMinSketch countMinSketch(Column col, int depth, int width, int seed)
col
- the column over which the sketch is builtdepth
- depth of the sketchwidth
- width of the sketchseed
- random seedCountMinSketch
over column colName
public CountMinSketch countMinSketch(Column col, double eps, double confidence, int seed)
col
- the column over which the sketch is builteps
- relative error of the sketchconfidence
- confidence of the sketchseed
- random seedCountMinSketch
over column colName
public BloomFilter bloomFilter(String colName, long expectedNumItems, double fpp)
colName
- name of the column over which the filter is builtexpectedNumItems
- expected number of items which will be put into the filter.fpp
- expected false positive probability of the filter.public BloomFilter bloomFilter(Column col, long expectedNumItems, double fpp)
col
- the column over which the filter is builtexpectedNumItems
- expected number of items which will be put into the filter.fpp
- expected false positive probability of the filter.public BloomFilter bloomFilter(String colName, long expectedNumItems, long numBits)
colName
- name of the column over which the filter is builtexpectedNumItems
- expected number of items which will be put into the filter.numBits
- expected number of bits of the filter.public BloomFilter bloomFilter(Column col, long expectedNumItems, long numBits)
col
- the column over which the filter is builtexpectedNumItems
- expected number of items which will be put into the filter.numBits
- expected number of bits of the filter.


Article title
Even the all-powerful Pointing has no control about the blind texts it is an almost unorthographic life One day however a small line of blind text by the name of Lorem Ipsum decided to leave for the far World of Grammar.
$22.99
This is a monthly recurring payment.
$69.99
This is a monthly recurring payment.
$224.99
This is a monthly recurring payment.
Calm and practical, I enjoy meeting new people and finding friendships around me. I have an unique sense of humour and it often leaves others laughing, while feeling a bit confused at the same time. To challenge myself, I love learning new technology and camera gear. I also enjoy travelling, and capturing beautiful landscape with photography.
Even the all-powerful Pointing has no control about the blind texts it is an almost unorthographic life One day however a small line of blind text by the name of Lorem Ipsum decided to leave for the far World of Grammar.
A small river named Duden flows by their place and supplies it with the necessary regelialia. It is a paradisematic country, in which roasted parts of sentences fly into your mouth.
Even the all-powerful Pointing has no control about the blind texts it is an almost unorthographic life One day however a small line of blind text by the name of Lorem Ipsum decided to leave for the far World of Grammar.


Forum: CleanupIssue: DEFSTRUCT-CONSTRUCTOR-KEY-MIXTURE
References: CLtL page 316
Category: CHANGE
Edit history: 20-Sep-88, Version 1, Peck
21-Sep-88, Version 2, Masinter, minor revisions
8-Jan-89, Version 3, Masinter
Problem description:
Currently, DEFSTRUCT constructor functions can be either the default
constructor function, with *only* keyword arguments, or it can be a
so-called "By Order of Arguments" constructor function with explicitly
*no* keyword arguments. Other functions in Common Lisp allow a free
mix of required, optional, and keyword arguments.
With the current restriction, it is necessary to hand code a function that
will accept optional and keyword arguments and parse the supplied-p
variables explicitly. Even so, it is not obvious to the casual programmer
how to provide the same semantics as defstruct does with respect to default
values and the defstruct init-forms.
Proposal: DEFSTRUCT-CONSTRUCTOR-KEY-MIXTURE:ALLOW-KEY
Allow &KEY keyword arguments in constructor forms of DEFSTRUCTs
and the &ALLOW-OTHER-KEYS token in addition to the &OPTIONAL,
&REST and &AUX arguments already allowed. Keyword arguments default
in a manner similar to that of &OPTIONAL arguments: if no default
is supplied in the lambda-list then the slot initform is used;
otherwise the slot is not initialized -- its initial value is
undefined.
If keyword arguments of the form ((key var) [default [svar]])
are specified, the "slot name" is matched with VAR (and not KEY).
Additional arguments that do not correspond to slot names but
are merely present to supply values used in subsequent initialization
computations are allowed.
Examples:
It should be possible to write forms like this:
(defstruct (foo (:constructor CREATE-FOO (a &optional b (c 'sea)
&key (d 2)
&aux e (f 'eff))))
(a 1) (b 2) (c 3) (d 4) (e 5) (f 6))
(create-foo 10) => #S(foo a 10 b 2 c sea d 2 e nil f eff)
(create-foo 10 'bee 'see :d 'dee) => #S(foo a 10 b bee c see d dee e nil f eff)
In the definition:
(defstruct (frob (:constructor create-frob
(a &key (b 3 have-b) (c-token 'c)
(c (list c-token (if have-b 7 2))))))
a b c)
the c-token argument is used merely to supply a value used in the
initialization of the c slot. The "supplied-p" arguments of
keyword arguments might be of this form.
Rationale:
This is a logical extension of the specification which makes some
programming easier.
Current practice:
Many implementations signal an error if given &KEY arguments or
arguments that are not slot names. The latest version of IIM Common
Lisp allows &KEY arguments in this manner. Envos Medley
(Xerox Common Lisp) implements the proposal.
Cost to Implementors:
The modifications to allow intermixed keywords and optionals in implementations
that don't already are likely simple.
Cost to Users:
No cost, this is upward compatible.
Cost of non-adoption:
The current situation is non-intuitive and needless restrictive.
Benefits:
Much easier for users to write the constructor function they want.
Probably implementation code would be reduced, since this would no
longer be an error.
Esthetics:
Minor improvement since it removes a needless restriction.
Discussion:
Possibly references to "By-position", "positional", and "By Order of
Arguments" constructor function might need to be changed to something else in
the standard. (They can still be called BOA-constructors, though, right? :-)
Version 2 of this proposal was on the January 1989 ballot.


Chocolate Pizza
POSTED ON 15 DES 2013/DESSERTS
For the fig-swirl: Melt butter over medium heat in a saucepan. Add brown sugar and stir to dissolve. Halve all of the figs and toss in the saucepan with water and lemon juice. Cook over medium heat, stirring frequently, until you ha''e a chunky-jammy mixture. Add salt with one or two stirs, set aside and let cool completely.
lce cream: in a small pot over medium heat, combine milk, and granulated sugar until sugar is completely dissolved and the milk is just barely lukewarm. Whisk in the egg yolks. Set mixture in the fudge and wait until the fig mixture is cooled.
Using an ice cream machine, pour liquids into the frozen basin and process according to manufacturer instructions, i.e., let spin and thicken for 20 minutes before adding mascarpone, fig jam mixture, and the nuts. Continue to process for +/- 10 minutes. Pour semi-dozen mixture into a pyrex dish or glass tupperware. Freeze for at least two hours before serving.


Fits linear models with endogenous regressor using latent instrumental variable approaches. The methods included in the package are Lewbel's (1997) <doi:10.2307/2171884> higher moments approach as well as Lewbel's (2012) <doi:10.1080/07350015.2012.643126> heteroskedasticity approach, Park and Gupta's (2012) <doi:10.1287/mksc.1120.0718> joint estimation method that uses Gaussian copula and Kim and Frees's (2007) <doi:10.1007/s11336-007-9008-1> multilevel generalized method of moment approach that deals with endogeneity in a multilevel setting. These are statistical techniques to address the endogeneity problem where no external instrumental variables are needed. Note that with version 2.0.0 sweeping changes were introduced which greatly improve functionality and usability but break backwards compatibility.
| Version: | 2.0.0 |
| Depends: | R (≥ 3.5) |
| Imports: | methods (≥ 3.5), stats (≥ 3.5), utils (≥ 3.5), Formula (≥ 1.2), optimx (≥ 2013.8.7), mvtnorm (≥ 1.0-8), AER (≥ 1.2-5), corpcor (≥ 1.6.9) |
| Suggests: | testthat, covr, knitr, rmarkdown |
| Published: | 2018-11-10 |
| Author: | Raluca Gui [cre, aut], Markus Meierer [aut], Rene Algesheimer [aut], Patrik Schilter [aut] |
| Maintainer: | Raluca Gui <raluca.gui at business.uzh.ch> |
| BugReports: | https://github.com/mmeierer/REndo/issues |
| License: | GPL-3 |
| URL: | https://github.com/mmeierer/REndo |
| NeedsCompilation: | no |
| Materials: | README NEWS |
| In views: | Econometrics |
| CRAN checks: | REndo results |
| Reference manual: | REndo.pdf |
| Package source: | REndo_2.0.0.tar.gz |
| Windows binaries: | r-devel: REndo_2.0.0.zip, r-release: REndo_2.0.0.zip, r-oldrel: REndo_1.3.zip |
| OS X binaries: | r-release: REndo_2.0.0.tgz, r-oldrel: REndo_1.3.tgz |
| Old sources: | REndo archive |
Please use the canonical form https://CRAN.R-project.org/package=REndo to link to this page.


Scrappy Social Media Management: Reusing Content
by Victoria Tran
The following blog post, unless otherwise noted, was written by a member of Gamasutra's community.
The thoughts and opinions expressed are those of the writer and not Gamasutra or its parent company.
Written by Victoria Tran , Communications Director at Kitfox Games . Currently working on Boyfriend Dungeon , Lucifer Within Us , Dwarf Fortress , and Mondo Museum . We just released Six Ages ! This was originally posted on our Medium blog.
Every indie community person I know has dealt with the same problem. You need new, constant, content for your studio’s social media channels but:
- All the artists are busy and can’t help you create new content
- You can’t use any new in-game content because it’ll be a spoiler/we can’t show it yet/it’s not ready/it might change/life is suffering
- You’ve already used up all the images/videos available
- There is no new news about your game
When Kitfox first started in 2013, the team described the studio as being “scrappy”. While we’ve moved past that description for the most part (WOO!), I find it to be the perfect word to describe a *part* of my community style.
What Does “Scrappy” Mean?
For my purposes, I see scrappy to mean doing a lot with little resources — whether that’s time, content, or ability.
Scrappiness requires a lot of different things, but more than anything it’ll require this:
- Creativity: Not just in the general sense of being able to come up with new/fun ideas, but being able to see how content can be repurposed.
- Being okay with not being perfect: It’s a totally valid and good marketing strategy to have picture perfect content to share, every time. Finely crafted messages. The highest quality GIFs. But being scrappy means you’re going to sometimes need to be okay with a bit of grittiness and a lack of polish.
- Flexibility: Not only will you have to be on your feet to handle new things, but you’ll also need a broad-ish skillset, in wherever that may lie. (Or at least, be willing to learn!) Image editing, basic video editing, drawing skills, GIF making, extremely good pun-sense — it can be any range of things, but it will HAVE to be a range.
  Stick with me here though. There are benefits to being scrappy.
Let’s be clear about quality versus quantity though. While scrappiness means things won’t be “perfect”, it doesn’t mean you should be posting low quality content either. Laggy GIFs/videos, uninteresting screenshots, extremely-hashtagged tweets… this is not what scrappy is.
Why Be Scrappy?
So… other than the fact that you can do stuff with little resources, what’s the benefit of being scrappy?
- DO IT. JUST. DOOO IT. Haha ok old Shia Labeouf memes aside, I’ve seen A LOT of people fall under a trap of trying so hard to be perfect that they never actually do the thing. It’s always easier to sit back and read endless articles about marketing. To know the best tips, tricks, and strategies. You can learn A LOT from reading articles, don’t get me wrong, but nothing beats being down in the trenches and actually doing the thing. Make that IMGUR post and completely fail at it! Run a contest only to have no entries! Try to do the thing! And then learn from it!
- Being Agile. Being strapped for time means you’re going to really good about where you spend your energy. Agile is all about reiterating and learning from the process, and it’s something that can be applied to marketing too. The speed of scrappy marketing means you’ll get fast feedback on what your community latches onto the most — whether that’s an aspect of your game, or a particular social media channel. And once you get that sort of feedback, you can hunker down and work towards improving the thing that works, rather than spreading yourself thin in an effort to catch every marketing channel.
- Oh, the humanity. If it’s one thing indies get, it’s the human-aspect of running a game studio. We aren’t a studio of 200, anonymously working on our next project. We get to be a little more casual. We get to send emails that are entirely meows. We get to be more vulnerable and known to the people that enjoy our games, and our marketing should reflect that. Building a connection means people will be more receptive to who we are, and in turn, our games.
How To Be Scrappy
Now that you know the what/why, it’s time to get into the harder part of how you’ll be scrappy. Often, this falls on reusing and repurposing content — which is when you take an asset and make it into new assets in different formats. Every studio has their own unique limitations, so everything won’t necessarily apply to you, but hopefully it’ll help!
Break Down Your Trailer
Trailers are my FAVORITE material. They don’t come around often, but when you do release one, you can bet it’ll be material for the next while. Trailers often have “chunks” to them — an exciting action portion, a more informative part, some cinematic, etc. Break these up into separate GIFs to not only have content for ages to come, but to also see which ones do best when you post them.
For example, below are two different “mood sections” from the Mondo Museum trailer that could become separate posts. They highlight different things: the left focuses on “building”, while the right is more about “look at these cool, personal exhibits” aspect of the game.
If you watch the trailer, here’s how I would split it up to become individual GIFs for content:
- 0:01–0:04 | Build your own ____ museum
- 0:04–0:06 | Panning scenic shot
- 0:06–0:09 | Build
- 0:09–0:12 | Manage
- 0:13–0:16 | Grow (optionally add the “Profit” part at 0:17)
- 0:19–0:22 | Ending screen
Often these GIFs can be a good indication of seeing what people latch onto about your game, or be a signal that they don’t necessarily understand what’s going on with it. (For example, Lucifer Within Us is a complicated game to explain, so I try to REALLY break it up in order to allow people to focus on what I’m trying to get across.)
And if there’s a still screenshot you can grab from the trailer that looks cool, even better!
Repurposing Art
So when I’m making scrappy social content, here are the very basics I need:
- As many character portraits as possible
- At least one background (could be from the key art)
- If possible, props/flourishes. (Such as in-game items, mood indicators, or weapons.)
I’m not an artist, so my ability to create new assets is quite weak, but I am proficient enough at Photoshop that I can often find creative workarounds when I need a quick image to throw up on social.
Many think good content often has shiny new images associated with it, but that’s not necessarily true. I’ve often reused images or tweaked them slightly in order to create new posts, relying more heavily on the caption of the image to make it seem exciting. Remember, social media moves at a breakneck pace, so more often than not you can assume people haven’t seen your image before OR have already forgotten about it.
For instance, in the case of Boyfriend Dungeon, I was stuck with only some sword portraits and a background.
As a base for many social posts, I’ve used the image above and just changed up the caption, or added different things.
It became three different posts (which rely heavily on text):
- https://twitter.com/KitfoxGames/status/1001519320210472960
- https://twitter.com/KitfoxGames/status/1015244534672961537
- https://twitter.com/KitfoxGames/status/1067070471898726401
Again, this involves a certain level of creativity and timing when it comes to repurposing art into new content. It’s difficult to give tips on exactly what you can do since it depends on the voice/tone of your studio and what you have available, but for the day-to-day of your social media, you don’t need bombastic posts every time. Unless that’s your thing!
Reposting Articles
After a big announcement or reveal, you’ll hopefully have at least a few articles about your game that you can use. Often you can retweet them, but after awhile you can also pull quotes you want people to pay attention to (and don’t forget to link to the article again of course.)
Let’s be real here, not everyone will click or read an article in its entirety, so this will help direct their attention.
Timing
One of the things to keep in mind when you reuse content is to not share it TOO frequently, lest people get too used to seeing that one image and automatically scroll right past it. I tend to put at least a few months in between reusing content, depending on what it is.
You can also plan your content for different holidays! Hubspot has a good calendar filled with all of the silly/serious holidays, if you need one.
Ending Thoughts
Social media is very good at making it look like we all have our best foot forward at all times, which is not always the case.
Especially among community developer circles, I think we can get A LOT of imposter syndrome thinking that everyone has their stuff together, while in reality we’re all scrambling to find SOMETHING. At least in my case, you can rest easy knowing that I too am struggling to find things to say about our games when I’m not allowed to. But that’s okay.
It’s actually kinda fun being scrappy.
See ya online.


Located in a peacful bungalow outside Lake Geneva Wisconsin
Retreat from the desk, return refreshed.
Have the work week you always dreamed of - without the bad wifi.
12 private rooms ensuite bathrooms, 2 group meetings rooms, and 4 breakout rooms.
Private chef team providing on demand meals- just like your team kitchen.
5 outdoor obstacle courses, including private beach 1/2 mile from bungalow.
Retreat facilitator to manage your day to day activities so you all get a chance to reset.
Dedicated computer room for the times that you must use wifi
Be a better team in 5 days, like this one.
LaCrue Bottling Co. October 2018
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.


:
View in Salesforce
Title:
Company:
Industry:
Email:
Address:
,
Phone:
Jive content for this lead:
Showing a limited list of search results. Please use Jive search for full results.


Wow! All I can say is that the DIPT experiance I had was absolutely unbelievable! My psychedelic friend of mine, Rob, and I were messed up on alcohol and we decided to take some klonopin. What an absolutely awesome mistake. At some point during our klonopin high we decided to dig in to my personal drug box. The box contained 3 hits of fluff LSD, 200 grams of MDMA, 500 grams of 2C-I, and a vial of DIPT. Since we had never had the DIPT we decided to use it. So, I cut out two lines of what seemed to be about 100mg DIPT and we insufflated it (it actually turned out to be about 250mg each).
Immediately after insufflating the substance I really dont remember much. I only remember yelling 'oh my god this is not good at all' and the guests in my apartment began to wig out hard. I remember telling them not to worry because I was a pro with tryptamines and this was only a consequence of insufflating the substance. Anyway, I decided that it would be a good idea to pass out. I tried to pass out but I eventually woke up to Rob standing up and saying 'oh my god what the fuck'. This is exactly what I felt. Extremely intense echoes and sounds were running through my head. It was almost as if I was tripping on a visual based tryptamine such as foxy or 2-cb, however, it was completely auditory.
 Anything we heard was of a completely different level of sound than what would be arguably normal.  We were in a completely different world and it was AWESOME! I wish I could remember more but we obviously took too much. All I can remember is running around inside and outside looking for different sounds which at a non DIPT state I would accept to be normal. It was quite intriging.
When we came down from the (overdose) DIPT we found something which was unbelieveably intriguing. Many empty jars of paint and Jazz CD's including 'The Butterfield Blues Band', 'Muddy Waters', 'Herbie Hancock', and 'John Coltrane', were scattered about on my floor, and my wall was painted like a psychedelic mural.
I reccomend not screwing around with this substance. Funny sounds are cool, just like funny visuals with other drugs. Yet, I believe these things mean more than a good time, as Ken Kesey says, 'Visuals are the Decor of Acid', I believe the minor Auditory Hallucinations that come by from small dosages of the substance are the decor of DIPT. Sufficient doses of DIPT can make you experiance Sound, you can be physically connected to different noises and sound.
This is the most underrated drug in history, enjoy it while its legal! Have fun and be prepared.
Experience Reports are the writings and opinions of the individual authors who submit them.
Some of the activities described are dangerous and/or illegal and none are recommended by Erowid.


huge thanks to u/theRapkin for the attributes descriptions per modifier, you can find the whole thread here


The format of the package name. This determines what the version of the
package will be when building a non-tag release.
Acceptable format specifiers:
- YYYY - 4 digit year
- MM - 2 digit month
- dd - 2 digit day
- HH - 2 digit hour
- mm - 2 digit minute
- ss - 2 digit seconds
- %rev% - Revision. For git, this is a string like
"git1234567"(contains last commit).
For SVN, this is a string like "svn1234"(contains current rev)
- %build% - Build number, as reported by Jenkins
The default value is YYYYMMddHHmmss.%rev%.%build%


Covid-19, which is now a fast growing global pandemic. The number of confirmed cases worldwide has exceeded 25,65,000 due to rapid spreading of the virus.
Covid-19, spreads very easily, much easier than many other regular illnesses we deal with on a regular basis. That's what makes it so dangerous.
The best course of action is to stay at home prevent the spread of the disease as well as hospitals getting overwhelmed with patients who simply shoudn't be there.
As of today, there is no know cure and no approved vaccine for Covid-19


Ludum Dare 39 – ⚡ Swing Bolt ⚡
This past weekend I participated the thirty-ninth Ludum Dare game jam competition. For the unaware, it is a forty-eight hour game making competition based on a theme announced at the start of the event. In the days leading up to the event users can submit theme suggestions, and later vote on the best ones submitted. This time the theme was Running out of Power.
The event started at three in the morning in my timezone, so as usual I slept through the announcement and started at a more sensible time, around eight. I spent the first hour or two brainstorming ideas that were manageable for me to make in just two days, but still interesting and unique. I ended up going with a hovercraft-like vehicle towing around device attached by a chain, whose job it was to collect batteries to stay charged. Looking back now, I think I should have spent a little more time in this phase to try to figure out additional mechanics that would add interesting gameplay, but nonetheless this turned out to be a decent mechanic on its own.
I worked the rest of the day implementing the main mechanics; the chain, item pickups, and enemy spawning and basic AI. The blue sphere you see above are the “enemies”, they don’t actually serve any purpose – I never got around to adding any. They do however work as a difficulty ramp since as the game progresses more and more of the spawn, making it harder to reach the new batteries in time. In the evening when I was starting to get tired I began working on the less brain-intensive parts of the game like meshes, sound effects, music, post-processing, and menus.
The following day I began by adding bombs that drop in every so often to give the player something to dodge, and I added a timer so the player can see how long they can last. I added more meshes, particles, UI elements, a little main menu animation, and I fixed some small bugs. I also spent quite a while trying to get a decent looking thumbnail, as I knew that would be the only thing people have to go on when deciding whether or not to play your game.
With the deadline fast approaching, I finished off the game and submitted it around one in the morning, with two hours to spare.
I’m definitely glad with how it turned out, as it was my first time doing a game jam by myself, and my third time ever. I’m currently working on a few small updates to the game, first is adding a leaderboard so you can compare your time to other people’s.
If you want to play the game, you can find it on the submission page here: ldjam.com/events/ludum-dare/39/swing-bolt)
And you can find the project’s repository here: github.com/ajweeks/LD39
Feel free to contact me on Twitter: @_ajweeks_
Thanks for reading!


BMI calculator
Mark and John want to compare their BMIs. Let's now implement the functionality with objects and methods.
- For each of them (Mark and John), create an object with properties for their full name, mass, and height
- Then, add a method to each object to calculate the BMI. Save the BMI to the object and also return it from the method.
- In the end, log to the console who has the highest BMI, together with the full name and the respective BMI. Don't forget they might have the same BMI.
Remember: BMI = mass / height^2 = mass / (height * height). (mass in kg and height in meter).
Open a browser console to solve the problem.


Users
Server
Revenue
Alert
Visits
Conversion
Fulan Bin Fulan
@fulanBinFulan
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Phasellus nec iaculis mauris. @bulmaio.
#css #responsive
| Three |
| Five |
| Seven |
| Ten |
| Twelve |
| Muhammad ibn ʿAbdullāh (PBUH) |
| Abu Bakar As Shidiq |
| Umar Bin Khattab |
| Usman Bin Affan |
| Said Bin zaid |


--- layout: example title: turf-aggregate description: Takes a set of polygons, a set of points, and an array of aggregations, then perform them. Sum, average, count, min, max, and deviation are supported. tags: - aggregation ---


Dev's week 6 Technical Blog Site
Inheritance vs Composition in Ruby
Inheritance
- Inheritance describes a relationship between objects where one is a kind of the other. With inheritance one of the objects is based off of the other one. By using inheritance programmers can reuse code and make their code more efficient.
- When a new class is made from a base class using inheritance all of the methods of the base class are brought over or 'inherited' from the parent. Methods that we may not need or want come over as well.
Pros and Cons
- The advantage of inheritance is how easy it is to create a new instance of a class, maintaining a hierarchy structure in the code, and the efficiency of reusing existing code.
- The disadvantage of inheritance is extremely close structure of the new classes created. If the base class changes at all it will have a ripple effect down to all the subclasses and could cause new defects to be created. If an application gets very large and complex this could be a real issue.
Composition
- Composition describes a relationship between objects where one has characteristics of the other. With composition you can pick and choose the methods you want to use so custom classes can be created.
Inheritance vs. Composition
- The decision on whether to use Inheritance or Composition all depends on the situation. If you answer the question 'is y a kind of x?' with a yes you should most likely start with inheritance to create your subclasses. Inheritance is good for simple object relationships.
- But if the relationship is more complex and not just hierarchical then it's probably a good idea to use composition. Composition gives you more flexibility and allows you to create code that will holdup to future changes.


carbon Plateau climate Tibetan Fig alpine change warming NPP grassland precipitation RCP., dynamics soil fluxes increase vegetation NEP Sciences response ecosystem elevated simulated {border-style Global RCP. net RCP model production px;} respiration #ffffff;} < future temperature Change decrease grasslands scenarios Ecology Environmental Wang cycle data increasing Biology Carbon However, Nature mean respectively. responses Research projected water Atmospheric Climate Furthermore, Plateau. correlation different permafrost plant results scenarios. -%, CENTURY Plant Science changes exchange predicted primary terrestrial time trend uptake Zhang budget decadal global growth indicated positive productivity regional slopes Academy Chemistry Chen Piao biomass effect increased magnitude meadow models px; research scenarios, showed sink variability {font-family Chinese Ciais Haibei National Writing availability concentration concentrations ecosystems fertilization font-size important partial period ΔNPP China Gao Letters Liu Parton Qinghai-Tibetan United atmospheric double; exhibited interannual largely observed previous range review suggested variation ΔNEP ΔRh > (R:. Agricultural America CMIP Click Data Earth Han Jones LINK P<.), Soil States Validation Zhu additional analysis border-color border-width century century, climatic decades decreasing editing effects file. gradually heterotrophic high higher impacts led linear max min monthly obtained precipitation, projections role seasonal sequestration solid; stable station stimulated temporal warmer {font-style {font-weight (R) .%, .), ./nature ./pnas. B). C). Consequently, Damxung Dioxide Ecosystem Environment Fang Forest Grasslands Institute Jin Key Life Modeling NEE NPP. Ojima P<.) Physical Proceedings Sciences, Shen Spatial Tang aboveground associated balance bold calibrated capacity caused change. changing contributed controlled courier; curation decade decreased difference em; enhanced fact field flux increasingly large larger loss nitrogen observations organic past periods periods, phenology primarily probably pt;} rate rates relatively reported respectively scenario. sensitive simulation slightly slope spring steppe strongly studies used values warming, warming.


Each of our clients, whether a large institution or an individual is considered our special guest. Each client has a unique need, food preference and style of entertaining. Most of our clients have used our services for many years.
Some of our clients have used us for their children's high school and college graduations, weddings and baby showers. Our university and corporate clients look forward to having us back year after year for their events and receptions.
Some of our corporate clients include:
Catering with Distinction has had the pleasure of partnering with some of Boston's finest venues. Some of these include:


JavaScript is disabled on your browser.
Skip navigation links
Overview
Package
Class
Tree
Index
Help
Prev Letter
Next Letter
Frames
No Frames
All Classes
A
B
C
D
F
G
I
L
M
N
O
P
R
S
T
V
W
G
getActionType()
- Method in class pl.tomek_krzyszko.bluemanager.action.
BlueAction
getActionType()
- Method in class pl.tomek_krzyszko.bluemanager.action.
NotifyAction
getActionType()
- Method in class pl.tomek_krzyszko.bluemanager.action.
ReadAction
getActionType()
- Method in class pl.tomek_krzyszko.bluemanager.action.
WriteAction
getAddress()
- Method in class pl.tomek_krzyszko.bluemanager.device.
BlueDevice
getAutoRestartService()
- Method in class pl.tomek_krzyszko.bluemanager.
BlueConfig
getBluetoothClassicServerUUID()
- Method in class pl.tomek_krzyszko.bluemanager.
BlueConfig
getBluetoothDevice()
- Method in class pl.tomek_krzyszko.bluemanager.device.
BlueDevice
getBluetoothGatt()
- Method in class pl.tomek_krzyszko.bluemanager.device.
BlueDevice
getBluetoothSocket()
- Method in class pl.tomek_krzyszko.bluemanager.device.
BlueDevice
getBondedDevicesSet()
- Method in class pl.tomek_krzyszko.bluemanager.scanner.
BlueScanner
Method to get
Set
of the bonded device int the device memory
getBondedDevicesSet()
- Method in class pl.tomek_krzyszko.bluemanager.scanner.
BlueScannerTask
Method to get
Set
of the bonded device int the device memory
getBufferSize()
- Method in class pl.tomek_krzyszko.bluemanager.
BlueConfig
getCharacteristic()
- Method in class pl.tomek_krzyszko.bluemanager.action.
BlueAction
getComponent()
- Method in class pl.tomek_krzyszko.bluemanager.
BlueManager
Method to receive component
BlueManagerComponent
object.
getComponent(Context, BlueConfig)
- Static method in class pl.tomek_krzyszko.bluemanager.dagger.
ApplicationScope
getCurrentAction()
- Method in class pl.tomek_krzyszko.bluemanager.device.
BlueDevice
getDiscoveredDevice(String)
- Method in class pl.tomek_krzyszko.bluemanager.scanner.
BlueScanner
getDiscoveredDevices(String)
- Method in class pl.tomek_krzyszko.bluemanager.
BlueManager
getDiscoveredDevices()
- Method in class pl.tomek_krzyszko.bluemanager.scanner.
BlueScanner
getDiscoveredTimestamp()
- Method in class pl.tomek_krzyszko.bluemanager.device.
BlueDevice
getDiscoveryTimeoutMillis()
- Method in class pl.tomek_krzyszko.bluemanager.
BlueConfig
getInputStream()
- Method in class pl.tomek_krzyszko.bluemanager.device.
BlueDevice
getInstance()
- Static method in class pl.tomek_krzyszko.bluemanager.
BlueManager
Method which returns
BlueManager
instance.
getIntentFilter()
- Static method in class pl.tomek_krzyszko.bluemanager.callback.
BlueBroadcastReceiver
Method which return proper
IntentFilter
getItemCount()
- Method in class pl.tomekkrzyszko.bluemanager.
DevicesAdapter
getName()
- Method in class pl.tomek_krzyszko.bluemanager.device.
BlueDevice
getNotificationsEnablingDescriptorUUID()
- Method in class pl.tomek_krzyszko.bluemanager.
BlueConfig
getOutputStream()
- Method in class pl.tomek_krzyszko.bluemanager.device.
BlueDevice
getPairedDeivces()
- Method in class pl.tomek_krzyszko.bluemanager.
BlueManager
Return paired
BluetoothDevice
set.
getService()
- Method in class pl.tomek_krzyszko.bluemanager.action.
BlueAction
getService()
- Method in class pl.tomek_krzyszko.bluemanager.scanner.
BlueScanner.LocalBinder
getServiceDiscoveryTimeoutMillis()
- Method in class pl.tomek_krzyszko.bluemanager.
BlueConfig
getShouldSendBroadcast()
- Method in class pl.tomek_krzyszko.bluemanager.
BlueConfig
getValue()
- Method in class pl.tomek_krzyszko.bluemanager.action.
WriteAction
Specific class which implements Notify Action
getWaitPeriodAfterErrorMillis()
- Method in class pl.tomek_krzyszko.bluemanager.
BlueConfig
A
B
C
D
F
G
I
L
M
N
O
P
R
S
T
V
W
Skip navigation links
Overview
Package
Class
Tree
Index
Help
Prev Letter
Next Letter
Frames
No Frames
All Classes


|
SideCar
|
Abstract base class that monitors the running status of a Zerconf object such as Publisher or Browser. More...
#include </Users/howes/src/sidecar/Zeroconf/Monitor.h>
Public Member Functions | |
| virtual | ~Monitor () |
| Destructor. More... | |
Protected Member Functions | |
| Monitor () | |
| Constructor. More... | |
| virtual void | serviceStarted ()=0 |
| Notification from the monitored object that a service has started. More... | |
| virtual void | serviceStopping ()=0 |
| Notification from the monitored object that a service is about to stop. More... | |
| Transaction * | getMonitored () const |
| Obtain the monitored object. More... | |
Friends | |
| class | Transaction |
Abstract base class that monitors the running status of a Zerconf object such as Publisher or Browser.
The monitor receives notifications when a Zeroconf service starts or stops. Derived classes must define the serviceStarted() and serviceStopping() routines.
|
inlinevirtual |
|
inlineprotected |
Constructor.
Begin by not monitoring anything.
Definition at line 27 of file Monitor.h.
References serviceStarted(), and serviceStopping().
|
inlineprotected |
Obtain the monitored object.
NOTE: this value must NOT be held by others since Transaction objects are reference-counted, and may be destroyed at any time.
Definition at line 44 of file Monitor.h.
Referenced by SideCar::Zeroconf::ASIOMonitor::ASIOMonitor(), SideCar::Zeroconf::ACEMonitor::~ACEMonitor(), and SideCar::GUI::QtMonitor::~QtMonitor().
|
protectedpure virtual |
Notification from the monitored object that a service has started.
At this point, calls to getMonitored() shall return valid values.
Referenced by Monitor().
|
protectedpure virtual |
Notification from the monitored object that a service is about to stop.
At this point, calls to getMonitored() shall still return valid values, but after this routine exits, they will not.
Referenced by Monitor().


Weekly notified dengue cases and climate variables in Colombo district Sri Lanka from 2008/ week-52 to 2014/ week-21.
| Version: | 1.1.1 |
| Depends: | R (≥ 2.10) |
| Published: | 2018-02-22 |
| Author: | Thiyanga Talagala |
| Maintainer: | Thiyanga Talagala <thiyanga.talagala at monash.edu> |
| License: | CC0 |
| NeedsCompilation: | no |
| Materials: | README |
| CRAN checks: | colmozzie results |
| Reference manual: | colmozzie.pdf |
| Package source: | colmozzie_1.1.1.tar.gz |
| Windows binaries: | r-devel: colmozzie_1.1.1.zip, r-release: colmozzie_1.1.1.zip, r-oldrel: colmozzie_1.1.1.zip |
| OS X binaries: | r-release: colmozzie_1.1.1.tgz, r-oldrel: colmozzie_1.1.1.tgz |
Please use the canonical form https://CRAN.R-project.org/package=colmozzie to link to this page.


we are the leading selling and deliveringg company remaining during this corona period
you dont have to worry all
you need to do is take your phone and go to
order-wedeliverweb page and have any thing that you need.
be sure to get your order ontime and at alower price.
The scrum master.
He is the scrum master and the UI developer he has played important role to make this project successfull
The UI developer
She was the knowledge behind the cart section and worked hard to ensure all thing work as expected
The UI developer
He was the knowledge behind the contact us page he played avery import part hence ensure the company is found when cliet need service
The UI developer
He was the knowledge behind the cart section and the one who ensure all price tags are uptodate .
The UI developer
She was the knowledge behind the home page she played avery import role to ensure that homepage was intresting thus once visited something must be bought.


A lightbox wrapper for Ken's amazing slick carousel. Credits go to kenwheeler for doing the hard work.
Install via bower.
bower install -S slick-lightbox
Make sure you include CSS for both slick and slick-lightbox. Example HTML:
<!DOCTYPE html>

<title>slick lightbox</title>
<meta name="viewport" content="width=device-width">
<link rel="stylesheet" type="text/css" href="bower_components/slick-carousel/slick/slick.css">
<link rel="stylesheet" type="text/css" href="bower_components/slick-carousel/slick/slick-theme.css">
<link rel="stylesheet" type="text/css" href="styles/slick-lightbox.css">

http://placekitten.com/1600/1300

http://placekitten.com/1630/1280

http://placekitten.com/1500/1250

| Option | Type | Default | Description |
|---|---|---|---|
| background | string | rgba(0,0,0,.8) |
Background for the lightbox. Is used directly as a CSS background statement so that color and/or an image can be used. |
| closeOnEscape | boolean | true |
Should the lightbox close upon pressing ESC? |
| closeOnBackdropClick | boolean | true |
Should the lightbox close upon clicking on backdrop? |
| destroyTimeout | number | 500 |
How many ms should we wait before actually removing the lightbox from the DOM? The default is used so that a 0.5s opacity transition can take place. |
| itemSelector | string | a |
jQuery-like selector for the carousel-to-create items. The items should be anchors with href attribute aiming at the desired lightbox image. If that's not the case, you should specify the src option. |
| navigateByKeyboard | boolean | true |
Can you use keyboard arrows to navigate the carousel? |
| slick | object | {} |
Slick options to pass to the carousel. |
| caption | various | false |
Should the images be captioned? If false , no caption is created. You can pass your own function accepting the element and info attributes (e.g. function(element, info) { return $(element).doSomething(); } , with info being an { index: itemIndex, length: itemCount } object) or a string with the name of the data-attribute to be fetched (my-caption will get the value of data-my-caption attribute). |
| src | various | false |
How to get the image urls? If false , no src is taken as the href attribute. You can pass your own function accepting the element as an attribute (e.g. function(element) { return $(element).doSomething(); } ) or a string with the name of the attribute to be fetched (src will get the value of element.src attribute). |
| captionPosition | various | 'dynamic' |
Where should the caption be placed? When set to 'dynamic', the caption is displayed right under the image. When 'bottom', the caption is on the bottom of the screen independent to the image size. |
| images | various | false |
When passed an array, slick lightbox doesn't scan the elements for image URLs and uses array's values instead. |
| useHistoryApi | boolean | false |
When true , opening the lightbox does a history.pushState . The plugin then listens for the popstate event to close the lightbox. |
| layouts | object | See Layouts | |
| shouldOpen | function | null |
Given a function, checks the return value before opening. If the function returns a falsy value, the lightbox is not opened upon clicking on the items. Accepts three arguments - the slick lightbox instance as the first, the clicked element as the second and the click event as the last. |
| imageMaxHeight | number | 0.9 |
Maximum height of the lightbox images. Relative to the window height. |
| lazy | boolean | false |
Should the images be lazyloaded? |
| lazyPlaceholder | string | null |
Path to lazyloading placeholder. Defaults to a blank gif. |
Events are triggered on the source element. Example:
$(document).ready(function(){
$('ul').slickLightbox().on({
'show.slickLightbox': function(){ console.log('A `show.slickLightbox` event triggered.'); },1
'shown.slickLightbox': function(){ console.log('A `shown.slickLightbox` event triggered.'); },
'hide.slickLightbox': function(){ console.log('A `hide.slickLightbox` event triggered.'); },
'hidden.slickLightbox': function(){ console.log('A `hidden.slickLightbox` event triggered.'); }
});
});
| Event | Description |
|---|---|
| show.slickLightbox | Triggered when the lightbox is opened. |
| shown.slickLightbox | Triggered when the lightbox is opened, after the transitions took place. |
| hide.slickLightbox | Triggered when the lightbox is closed. |
| hidden.slickLightbox | Triggered when the lightbox is closed, after the transitions took place. |
The layout is customizable using the layouts
option object.
layouts.closeButton
, which defaults to <button type="button" class="slick-lightbox-close"></button>
You can access the lightbox instance through the bound element. It's assigned to .slickLightbox
. Example:
$('#my-element').slickLightbox()
console.log('My slickLightbox instance:', $('#my-element')[0].slickLightbox)
// once a lightbox is opened
console.log('My slick instance:', $('#my-element')[0].slickLightbox.slick)