stats_variance
(PECL stats >= 1.0.0)
stats_variance — Returns the variance
Description
float stats_variance ( array $a [, bool $sample = false ] ) Returns the variance of the values in a.
Parameters
a
The array of data to find the standard deviation for. Note that all values of the array will be cast to float.
sample
Indicates if a represents a sample of the population; defaults to FALSE.
Return Values
Returns the variance on success; FALSE on failure.
← stats_stat_powersum
? 1997–2017 The PHP Documentation GroupLicensed under the Creative Commons Attribution License v3.0 or later.
本文档系腾讯云开发者社区成员共同维护，如有问题请联系 cloudcommunity@tencent.com
