DAX Machine Learning Functionality Used By The Key Influencers Visual In Power BI

I’m one of those people who can’t resist peeking behind the scenes, and so when the Key Influencers visual appeared in Power BI I couldn’t help wondering how it worked its machine learning magic. Using DAX Studio to look at the DAX queries generated by the visual proved to be very revealing: it turns out that it uses a number of new DAX functions that are undocumented and probably not meant to be used outside Microsoft.

Source : Chris Webb’s BI Blog
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Dynamic Period variance with DAX in #PowerBI

One of those days where I spent a reasonable amount of time trying to solve a tricky DAX expression and once I got it; I came to know it was not at all tricky. In fact, it was far too simple to admit the time spent ?

When I showed PARALLELPERIOD and SAMEPERIODLASTYEAR measures to my business user, he asked me if he can select random quarters and measure should always get the variance from the earlier period based on the slicer choice than Time intelligence.

Bron : Prathy’s blog
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Number of Days between 2 Transactions Using DAX

I got my haircut today (pretty spiffy one too, even if I do say so myself). While I was chatting I asked my hair dresser “on average, how often should I get my hair cut”? She told me (for men) around 4-6 weeks. Then I got thinking (as I do), I wonder if I could data-mine my credit card data using Power BI and find out how often I actually get my own hair cut. It turns out I was able to do this, and this article explains the hardest part of that task – find the number of days between two transaction dates using DAX.

Bron : Excelerator BI
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