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stats_dens_f

(PECL stats >= 1.0.0)

stats_dens_f — Probability density function of the F distribution

Description

代码语言:javascript
复制
float stats_dens_f ( float $x , float $dfr1 , float $dfr2 )

Returns the probability density at x, where the random variable follows the F distribution of which the degree of freedoms are dfr1 and dfr2.

Parameters

x

The value at which the probability density is calculated

dfr1

The degree of freedom of the distribution

dfr2

The degree of freedom of the distribution

Return Values

The probability density at x or FALSE for failure.

← stats_dens_exponential

stats_dens_gamma →

代码语言:txt
复制
 ? 1997–2017 The PHP Documentation Group

Licensed under the Creative Commons Attribution License v3.0 or later.

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