updated example to compile with refactored Selection class
@@ -17,7 +17,7 @@ package tech.tablesaw;
import tech.tablesaw.api.*;
import tech.tablesaw.aggregate.CrossTab;
import tech.tablesaw.columns.numbers.NumberColumnFormatter;
-import tech.tablesaw.util.selection.Selection;
+import tech.tablesaw.selection.Selection;
import static tech.tablesaw.aggregate.AggregateFunctions.range;
