# CumulativeStdDev

The **CumulativeStdDev** function calculates the standard deviation of a column up to and including the current row value.

### Syntax

```
CumulativeStdDev([Column])
```

Function Arguments:

* **\[Column]** (required) - The column of numbers to evaluate the cumulative standard deviation.

Cumulative functions depend on the order of the given column. If you change the sorting you change the result.

### Example

```
CumulativeStdDev([Monthly Revenue])
```

A table contains the monthly revenue of a store. The **CumulativeStdDev** function can be used to find the standard deviation up to and including the current month.

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