sortByCount

Sorts the key-group pairs of this GroupBy by the number of rows in groups descending.

Returns a new GroupBy containing the same keys and groups in the resulting order. The contents of the groups remain unchanged.

Don't confuse this with sortBy that sorts rows within groups.

See also

• sortByCountAsc that sorts the key-group pairs of this GroupBy by the group sizes in ascending order.

• sortByGroup and sortByGroupDesc that sorts the key-group pairs of this GroupBy based on computed values.

• sortByKey and sortByKeyDesc that sort the key-group pairs of this GroupBy by the key values.

Check out GroupBy grammar.

For more information: See "GroupBy Transformation" on the documentation website.