VAR.S is a DAX function that estimates the variance based on a sample, ignoring logical values and text in the sample.
VAR.S( ColumnName )| Argument | Properties | Description |
|---|---|---|
| ColumnName | A column that contains numeric values corresponding to a sample of a population. |
A number with the variance of a sample population.
VAR.S assumes that the column refers to a sample of the population. If your data represents the entire population, then compute the variance by using VAR.P.
VAR.S uses the following formula:
∑(x – x̃)2/(n-1)
where x̃ is the average value of x for the sample 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.
The following example shows the formula for a measure that calculates the variance of the SalesAmount_USD column from the InternetSales_USD for a sample population.
= VAR.S(InternetSales_USD[SalesAmount_USD])
Other functions related to VAR.S are:
2023-2024 © BI Gorilla. All rights are reserved. Information from Microsoft docs is property of Microsoft Corp. | Privacy Policy