std

statistics

Calculates population standard deviation

Syntax

std(array|dataframe)

Parameters

array|dataframe (array or dataframe)

The data to calculate standard deviation from

Returns

number

The population standard deviation

Examples

Population standard deviation

Input:

[1, 2, 3, 4, 5] | std

Output:

1.414

Standard deviation of test scores

Input:

.scores | std

Output:

12.5

The std() function calculates the population standard deviation, which measures the spread of values around their mean. This is an alias for stdev_p().

Usage

Use std() for measuring data variability and dispersion in complete populations. For samples, use stdev_s() instead.

Related Functions

var stdev_p stdev_s mean