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Hi,
Hoping this is a simple answer. In summary, the STDEV expression I have below is not working.
Thanks Anil, having looked through similar expressions and intentions with a colleague, it seems the Variable doesn't like to work when used within the expression. Thank you for your interest though.
Try to debug the expression step by step and see if you able to get the result individually and see where is the fault?
Hi Anil,
I've previously tried too.
The expression above '+ stdev' returns results on its own. When I add ' + stdev (1) ' to it, it also returns results.
I suspect that the error is being caused by the (aggr ( avg ( .... part. I can't figure out where I need a 'sum' or 'min' or similar to make this second part work.
Without understanding the business logics, I have limited offer for you . But I will give the idea, Let's assume you are aggregating the data against medium. You can perhaps do Avg(Aggr(Median(....), Field))
Thanks Anil, having looked through similar expressions and intentions with a colleague, it seems the Variable doesn't like to work when used within the expression. Thank you for your interest though.