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(PECL stats >= 1.0.0)
stats_cdf_chisquare — Calculates any one parameter of the chi-square distribution given values for the others
Returns the cumulative distribution function, its inverse, or one of its parameters,
of the chi-square 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 k 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 | k |
2 | x | CDF | k |
3 | k | x | CDF |
par1
The first parameter
par2
The second parameter
which
The flag to determine what to be calculated
Returns CDF, x, or k, determined by which
.