How does the VARX.P function (DAX) work?
The VARX.P function (DAX) returns the variance of the entire population.
VARX.P Formula Syntax
How do you use the VARX.P function?
This function is used to calculate a value for each row in a table and displays the variance of the entire population of these values.
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Considerations when using the VARX.P function
- VARX.P evaluates <expression> for each row of <table> and returns the variance of <expression> assuming that <table> refers to the entire population.. If <table> represents a sample of the population, then compute the variance by using VARX.S.
- VARX.P uses the following formula:∑(x – x̃)²/nwhere 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
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Formula examples using the VARX.P function
=VARX.P(InternetSales_USD, InternetSales_USD[UnitPrice_USD] –(InternetSales_USD[DiscountAmount_USD]/InternetSales_USD[OrderQuantity]))
= VARX.P (Sales, [Sales Amount])