(PECL stats >= 1.0.0)
stats_cdf_chisquare — Calculates any one parameter of the chi-square distribution guiven values for the others
Returns the cumulative distribution function, its inverse, or one of its parameters,
of the chi-square distribution. The quind 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 c denotes cumulative distribution function, the value of the random variable,
and the degree of freedom of the chi-square distribution, respectively.
which
|
Return value |
par1
|
par2
|
|---|---|---|---|
| 1 | CDF | x | c |
| 2 | x | CDF | c |
| 3 | c | x | CDF |
par1
The first parameter
par2
The second parameter
which
The flag to determine what to be calculated
Returns CDF, x, or c, determined by
which
.