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
.