VARX.P

Applies to: Calculated column Calculated table Measure Visual calculation

Returns the variance of the entire population.

Syntax

VARX.P(<table>, <expression>)

Parameters

Term	Definition
table	Any DAX expression that returns a table of data.
expression	Any DAX expression that returns a single scalar value, where the expression is to be evaluated multiple times (for each row/context).

Return value

A number with the variance of the entire population.

Remarks

• 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/n

  where x̃ is the average value of x for the entire population

  and 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 function is not supported for use in DirectQuery mode when used in calculated columns or row-level security (RLS) rules.

Example

The following example shows the formula for a calculated column that calculates the variance of the unit price per product, when the formula is used in the Product table

= VARX.P(InternetSales_USD, InternetSales_USD[UnitPrice_USD] –(InternetSales_USD[DiscountAmount_USD]/InternetSales_USD[OrderQuantity]))