STDEV.P Function (DAX)
How does the STDEV.P function (DAX) work?
The STDEV.P function (DAX) returns the standard deviation of the entire population.
STDEV.P Formula Syntax
STDEV.P(
<ColumnName>
)
How do you use the STDEV.P function?
This function is used to calculates the standard deviation for a sample set of data. The STDEV.P calculates standard deviation using the “n” method, ignoring logical values and text.
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Standard deviation and median while filtering measures using slicers
Dax Calculation question
Considerations when using the STDEV.P function
- STDEV.P assumes that the column refers to the entire population. If your data represents a sample of the population, then compute the standard deviation by using STDEV.S.
- STDEV.P uses the following formula:√[∑(x – x̃)²/n]where x̃ is the average value of x for the entire populationand n is the population size
- Blank rows are filtered out from columnName and not considered in the calculations.
- An error is returned if columnName contains less than 2 non-blank rows
This DAX function may return different results when used in a model that is deployed and then queried in DirectQuery mode.
Related Video Tutorials
Formula examples using the STDEV.P function
=STDEV.P(InternetSales_USD[SalesAmount_USD])
=STDEV.P(A3:A12)
=STDEV.P(C5:C16,E5:E16,G5:G16)
