Hi which function should I use to compare intervals in charts? Is it possible to use class(), intervalmatch() etc. in a chart?
You can use Class() in a chart but not IntervalMatch().
The intervalmatch needs to be used in the script, when you want to create a Group field, to have it ready to use on the front end.
Class() can be used in a chart dimension (usually) or expression, intervalmatch is a script only function.
interval match possible in script level only
u can use class() in chart level
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