stats_cdf_noncentral_f
(PECL stats >= 1.0.0)
stats_cdf_noncentral_f — Calculates any one parameter of the non-central F distribution given values for the others
说明
$par1 ,
float $par2 ,
float $par3 ,
float $par4 ,
int $which ) :
float
Returns the cumulative distribution function, its inverse, or one of its parameters, of the non-central F distribution. The kind of the return value and parameters (par1, par2, par3, and par4) are determined by which.
The following table lists the return value and parameters by which. CDF, x, nu1, nu2, and lambda denotes cumurative distribution function, the value of the random variable, the degree of freedoms and the non-centrality parameter of the distribution, respectively.
which |
Return value | par1 |
par2 |
par3 |
par4 |
|---|---|---|---|---|---|
| 1 | CDF | x | nu1 | nu2 | lambda |
| 2 | x | CDF | nu1 | nu2 | lambda |
| 3 | nu1 | x | CDF | nu2 | lambda |
| 4 | nu2 | x | CDF | nu1 | lambda |
| 5 | lambda | x | CDF | nu1 | nu2 |
参数
-
par1 -
The first parameter
-
par2 -
The second parameter
-
par3 -
The third parameter
-
par4 -
The fourth parameter
-
which -
The flag to determine what to be calculated
返回值
Returns CDF, x, nu1, nu2, or lambda, determined by which.
