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DAX Statistical - VARX.P function
Description
Evaluates the given expression for each row of the given table, and returns the variance of the expression assuming that the table refers to the entire population.
Syntax
VARX.P (<table>, <expression>)
Parameters
| Sr.No. | Parameter & Description |
|---|---|
| 1 |
table A table or any DAX expression that returns a table of data. |
| 2 |
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 real number.
Remarks
DAX VARX.P function 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 use DAX VARX.S function.
$${\sum\frac{(x\:-\:\bar{x})^{2}}{N}}$$
Where, $\bar{x}$ 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 calculation.
An error is returned if columnName contains less than 2 non-blank rows.
Example
= VARX.P (Sales, [Sales Amount])