# Function std_dev::standard_deviation_cluster

source · ```
pub fn standard_deviation_cluster(
values: &ClusterList<'_>
) -> StandardDeviationOutput<f64>
```

## Expand description

Get the standard deviation of `values`

.
The mean is also returned from this, because it’s required to compute the standard deviation.

O(m), where m is the number of `Cluster`

s.