php man page for stats_standard_deviation

Query: stats_standard_deviation

OS: php

Section: 3

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

STATS_STANDARD_DEVIATION(3)						 1					       STATS_STANDARD_DEVIATION(3)

stats_standard_deviation - Returns the standard deviation

SYNOPSIS
float stats_standard_deviation (array $a, [bool $sample = false])
DESCRIPTION
PARAMETERS
o $a - The array of data to find the standard deviation for. Note that all values of the array will be cast to float. o $sample - Indicates if $a represents a sample of the population; defaults to FALSE.
RETURN VALUES
Returns the standard deviation on success; FALSE on failure.
ERRORS
/EXCEPTIONS Raises an E_WARNING when there are fewer than 2 values in $a. PHP Documentation Group STATS_STANDARD_DEVIATION(3)
Related Man Pages
array_count_values(3) - php
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