Forum Discussion
Need Help on Autocorrelation Calculation
- 2 years ago
Here you go
Most likelky not. Power BI has no memory and no concept of self-referencing without becoming all upset about circular references.
Please provide sample data that covers your issue or question completely, in a usable format (not as a screenshot).
Do not include sensitive information or anything not related to the issue or question.
If you are unsure how to upload data please refer to https://community.fabric.microsoft.com/t5/Community-Blog/How-to-provide-sample-data-in-the-Power-BI-Forum/ba-p/963216
Please show the expected outcome based on the sample data you provided.
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- Irwan2 years agoSuper User
Hello lbendlin
here is the sample data. Basically that is a data came from the website that i mentioned (I am trying to recreate the result before applying it into real data).
Jan 56 Feb 58 Mar 69 Apr 50 May 66 Jun 68 Jul 78 Aug 73 Sept 88 Oct 90 Here is the result that I wish to get in Power BI
However, if Power BI has no memory or concept of self-referencing, then it is impossible doing autocorrelation in Power BI?
Thank you and really appreciate for the help.
- lbendlin2 years agoSuper User
Here you go
- Irwan2 years agoSuper User
Hello lbendlin
that DAX is superb, thank you.
I dont know if there is a sumx offset at line 6 (maybe) as a "bridge" before sumx the whole result as in Line 8 (thought it can be done directly by using earlier indexing).
I need to work again on my DAX understanding as a beginner.
Again, thank you and really appreciate for the help.
- lbendlin2 years agoSuper User
Ah, that's actually simple - basically a special case for a Pearson correlation within the column. Let me play with that a bit.