Adding Statistics like Standard Deviation, Upper Control Limits, Lower Control Limits to Line Chart

[Anonymous]

Hi Everyone,

What's the easiest way to add Standard deviation, Upper Control Limits (average + 3* the standard deviation), Lower Control Limits (average - 3* the standard deviation) on a line chart with date heirarchy? Anyone know optimized DAX instead of custom visual.

[v-lili6-msft]

hi @Anonymous 

Create two measure as below:

Lower Control = CALCULATE(AVERAGE('Table'[Value]),ALL('Table')) -3*CALCULATE(STDEV.S('Table'[Value]),ALL('Table'))

Upper Control = CALCULATE(AVERAGE('Table'[Value]),ALL('Table')) +3*CALCULATE(STDEV.S('Table'[Value]),ALL('Table'))

Then drag the two measure into line value 

Regards,

Lin

[Anonymous]

This is working but how do I make the UCL and LCL dynamic based off of if a user is looking at chart with a date heirarchy. Currently this is giving me the UCL and LCL for the overall but when I drill down on a monthly or weekly level, the UCL and LCL does not change -

[parry2k · Accepted solution]

@Anonymous change ALL to ALLSELECTED and I think that will do it.

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[AllisonKennedy]

Not sure what the problem is, have you tried the DAX STDEV functions? https://dax.guide/stdev-p/

[parry2k]

@Anonymous you can create measures for upper and lower limit and use that in your line visual?

I would ❤ Kudos if my solution helped. 👉 If you can spend time posting the question, you can also make efforts to give Kudos whoever helped to solve your problem. It is a token of appreciation!

⚡Visit us at https://perytus.com, your one-stop shop for Power BI related projects/training/consultancy.⚡