# Function var

Compute the variance of a list of values In case of a (multi dimensional) array or matrix, the variance over all elements will be calculated.

    var(a, b, c, ...)     var(A)     var(A, normalization)

Where `normalization` is a string having one of the following values:


### Parameters

Parameter | Type | Description
--------- | ---- | -----------
`array` | Array | Matrix | A single matrix or or multiple scalar values
`normalization` | String |  Default value: 'unbiased' Determines how to normalize the variance: - 'unbiased' (default) The sum of squared errors is divided by (n - 1) - 'uncorrected'        The sum of squared errors is divided by n - 'biased'             The sum of squared errors is divided by (n + 1)

### Returns

Type | Description
---- | -----------
* | res




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