Calculates any one parameter of the chi-square distribution given values for the others

# stats_cdf_chisquare

(PECL stats >= 1.0.0)

stats_cdf_chisquare — Calculates any one parameter of the chi-square distribution given values for the others

### Beschreibung

function stats_cdf_chisquare(float `$par1`, float `$par2`, int `$which`): float

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.

Return value and parameters
`which` | Return value | `par1` | `par2`
--- | --- | --- | ---
1 | CDF | x | k
2 | x | CDF | k
3 | k | x | CDF

### Parameter-Liste

`par1`

  The first parameter

`par2`

  The second parameter

`which`

  The flag to determine what to be calculated

### Rückgabewerte

Returns CDF, x, or k, determined by `which`.

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