GROUPTOPN

Syntax 

GROUPTOPN(<any>;[<integer>])

Description

Selects the top N values from a group. If this function is applied on a date column, top N means the N most recent dates.

This is a group series function.

Example

Given the following data:

GroupsParticipants
group16
group112
group15
group15
group15
group17
group15
group19
group18
group224
group224
group224
group233
group233
group229
group230
group232
group235

First create a group using GROUPBY(#RawData!Groups)

Groups
group1
group2

Then use the GROUPTOPN(#RawData!Participants;3). The result is the top "N" (in this case "3") values of the column in relation to the GROUPBY() column.

GroupsParticipants_TOP3
group112
group19
group18
group235
group233
group233