stats_cdf_noncentral_t
(PECL stats >= 1.0.0)
stats_cdf_noncentral_t — Calculates any one parameter of the non-central t-distribution give values for the others
说明
$par1
, float $par2
, float $par3
, int $which
) : float
Returns the cumulative distribution function, its inverse, or one of its parameters,
of the non-central t-distribution. The kind of the return value and parameters
(par1, par2, and par3)
are determined by which.
The following table lists the return value and parameters by which.
CDF, x, nu, and mu denotes cumurative distribution function, the value of the random
variable, the degrees of freedom and the non-centrality parameter of the distribution,
respectively.
which |
Return value | par1 |
par2 |
par3 |
|---|---|---|---|---|
| 1 | CDF | x | nu | mu |
| 2 | x | CDF | nu | mu |
| 3 | nu | x | CDF | mu |
| 4 | mu | x | CDF | nu |
参数
-
par1 -
The first parameter
-
par2 -
The second parameter
-
par3 -
The third parameter
-
which -
The flag to determine what to be calculated
返回值
Returns CDF, x, nu, or mu, determined by which.