stats_cdf_logistic
stats_cdf_logistic
(PECL stats >= 1.0.0)
stats_cdf_logistic — Calculates any one parameter of the logistic distribution given values for the others.
Description
float stats_cdf_logistic ( float $par1 , float $par2 , float $par3 , int $which )
Returns the cumulative distribution function, its inverse, or one of its parameters, of the logistic 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, mu, and s denotes cumurative distribution function, the value of the random variable, and the location and the scale parameter of the logistic distribution, respectively.
| which | Return value | par1 | par2 | par3 |
|---|---|---|---|---|
| 1 | CDF | x | mu | s |
| 2 | x | CDF | mu | s |
| 3 | mu | x | CDF | s |
| 4 | s | x | CDF | mu |
Parameters
par1
The first parameter
par2
The second parameter
par3
The third parameter
which
The flag to determine what to be calculated
Return Values
Returns CDF, x, mu, or s, determined by which.
← stats_cdf_laplace
stats_cdf_negative_binomial →
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https://secure.php.net/manual/en/function.stats-cdf-logistic.php
