OptionalgetWhat fn returns over the members getMembers would give, computed without them.
Optionalrow: PivotGroupOptionalcolumn: PivotGroupnull when no kept record is in both groups, undefined when the pivot does not
compute fn this way: call fn over getMembers instead.
The column groups.
The members of values in both a row group and a column group, as one column in record order.
One column, as tall as the keys.
Optionalrow: PivotGroup
A group of this pivot's rows; omit it, or pass the root, for every row.
Optionalcolumn: PivotGroup
A group of this pivot's columns; omit it, or pass the root, for every column.
An array, never a reference, or null when no kept record is in both groups.
The number of records kept by the filter.
The row groups.
The records of a range grouped by rows and by columns — see IFormulaContext.createPivot.