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WorkHard
Helper V
Helper V

Calculate Standard Deviation with a slicer for Sigma

I'm trying to build a Standard Deviation based on these rules:

WorkHard_0-1658440440852.png

 

I know I can't create a bell chart like that in PowerBI, but I'm trying to at least create the categories for the intervals/sigma values.

i.e:

=switch(true(),
StandardDeviationInterval>=68.2%,"SD1",
StandardDeviationInterval<68.2% && StandardDeviationInterval>=27.2%,"SD2",
StandardDeviationInterval<27.2% && StandardDeviationInterval>=4.2%,"SD3",
StandardDeviationInterval<4.2% && StandardDeviationInterval>=0.2%,"SD4","SD5+")

 

How do I calculate this deviation interval?

I know how to calculate the standard deviation and the distribution with STDEV.S and NORM.DIST respectevely but these do not give me those 5 ranges/intervals I need.

1 REPLY 1
DataInsights
Super User
Super User

@WorkHard,

 

You might try creating a disconnected table with a row for each range (SD1, SD2, etc.). Then use this table in the visual, and use DAX to get the amount for each range.

 

https://www.sumproduct.com/blog/article/power-pivot-principles/ppp-variables-and-disconnected-tables... 

 

Here's a free histogram visual:

 

DataInsights_0-1658496563597.png

 





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