> For the complete documentation index, see [llms.txt](https://docs.cascade.io/cascade/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cascade.io/cascade/functions-and-expressions/functions/table/runningstdev.md).

# RUNNINGSTDEV

RUNNINGSTDEV(`column`)

Returns the running standard deviation in a `column`

### Arguments

| Argument | Description                                                                 |
| -------- | --------------------------------------------------------------------------- |
| `column` | Column on which to compute the running standard deviation. Must be numeric. |

### Output

Running standard deviation of input `column`

### Example

{% embed url="<https://datawrapper.dwcdn.net/ozXn9/1>" %}