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Underlying Calculation for Standard Deviation Factors

Publiceringsdatum: Apr 28, 2025
Uppgift
What is the underlying calculation tableau uses for standard deviation. More specifically, what is the underlying calculation for the standard deviation factors in Tableau?
Steg
The calculation Tableau Desktop is running for Standard Deviation is what every text book lists as the definition of standard deviation.

The -1/1 factor is AVG - 1*STDEV and AVG + 1*STDEV and the -2/2 factor is AVG - 2*STDEV and AVG + 2*STDEV.
Ytterligare resurser
The attached workbook contains examples of calculating the -1/+1 manually using Table Calculation Functions.
Knowledge-artikelnummer

001458006

Bilagor

Stdev.twbx

449 KB

 
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