stats_cdf_t
stats_cdf_t
(PECL stats >= 1.0.0)
stats_cdf_t — Calculates any one parameter of the t-distribution given values for the others.
Description
float stats_cdf_t ( float $par1 , float $par2 , int $which )
Returns the cumulative distribution function, its inverse, or one of its parameters, of the t-distribution. The kind of the return value and parameters (par1 and par2) are determined by which.
The following table lists the return value and parameters by which. CDF, x, and nu denotes cumurative distribution function, the value of the random variable, and the degrees of freedom of the t-distribution, respectively.
| which | Return value | par1 | par2 |
|---|---|---|---|
| 1 | CDF | x | nu |
| 2 | x | CDF | nu |
| 3 | nu | x | CDF |
Parameters
par1
The first parameter
par2
The second parameter
which
The flag to determine what to be calculated
Return Values
Returns CDF, x, or nu, determined by which.
← stats_cdf_poisson
stats_cdf_uniform →
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