(PECL stats >= 1.0.0)
stats_cdf_t — Calculates any one parameter of the t-distribution given values for the others
stats_cdf_t ( float $par1 , float $par2 , int $which ) : float
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 cumulative 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 |
par1
The first parameter
par2
The second parameter
which
The flag to determine what to be calculated
Returns CDF, x, or nu, determined by which.
© 1997–2020 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.stats-cdf-t.php