# varIf
<a name="varIf-function"></a>

Based on a conditional statement, the `varIf` function calculates the variance of the set of numbers in the specified measure, grouped by the chosen dimension or dimensions, based on a sample.

## Syntax
<a name="varIf-function-syntax"></a>

```
varIf(measure, conditions)
```

## Arguments
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 *measure*   
The argument must be a measure. Null values are omitted from the results. Literal values don't work. The argument must be a field.

 *condition*   
One or more conditions in a single statement.