> For the complete documentation index, see [llms.txt](https://docs.tabula.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tabula.io/data-transformation/formulas/aggregate-functions/stddevif.md).

# StdDevIf

Gets the standard deviation in the column filtered by the condition

```mathematica
StdDevIf(column1, column1 > 10) → 11.39
StdDevIf(column2, column2 < Round(column3)) → 5.78
```

#### Inputs

`StdDevIf(column, [condition])`

* `column` - A column to calculate the standard deviation for
* `[condition]` - **\[optional]** - Condition to filter values in the column
