Forum Discussion
Help to find Standard Deviation
Thank you!
The challenge here is I need to find standard deviation for a measure which is a quick measure to calculate 3 months rolling average.
I think the solution would be creating it as a calculated measure. Is it possible?
Ah, it sounds like you are trying to do an aggregation. The trick there is to use SUMMARIZE. See this article:
https://community.powerbi.com/t5/Community-Blog/Design-Pattern-Groups-and-Super-Groups/ba-p/138149
A quick measure still creates a real measure, it just does it quickly without you having to hand-type the DAX code.
I'm Sorry. I think I didn't make it clear.
My problem is, STDEV.P expects column to calculate. But I have it as a measure which I need to find Std Dev.
Let's say,
I wanted to calculate Standard deviation for rolling month average. But it is actually a measure. So I'm unable to use it in STDEV.P().
Is there a way to calculate rolling N month average as a calculated column?
Kindly help me!
Right, so that article shows the use of SUMMARIZE, so you put your grouping and your measure into the SUMMARIZE. This essentially turns the measure into a column in the context of the table coming back from SUMMARIZE and then you can use whatever aggregation on that. In your case you would want to use the STDEVX.P function. Note the "X".
I tried the same. Unfortunately, I got the following warning,
A circular dependency was detected