Function standardDeviation

standardDeviation<TElement>(
    source: Iterable<TElement>,
    selector?: Selector<TElement, number>,
    sample?: boolean,
): number
Calculates the standard deviation of the numeric values produced by source.
Type Parameters
- TElement
  Type of elements within the source iterable.
Parameters
- source: Iterable<TElement>
  The source iterable to inspect.
- Optionalselector: Selector<TElement, number>
  Optional projection that extracts the numeric value for each element. Defaults to the element itself.
- Optionalsample: boolean
  When true, computes the sample standard deviation; when false, computes the population standard deviation. Defaults to true.
Returns number
The calculated standard deviation, or NaN when there are insufficient values to compute it.
Throws
Re-throws any error thrown while iterating source or executing selector.

Remarks
This function delegates to variance; when the variance is NaN, that value is returned unchanged. The iterable is enumerated exactly once using a numerically stable single-pass algorithm.
Example
```
const populationStdDev = standardDeviation([1, 2, 3, 4, 5], x => x, false);
console.log(populationStdDev); // Math.sqrt(2)
```
- Defined in src/enumerator/functions/standardDeviation.ts:19