3.5.3.3.16 Wblinv

Definition:

$xp = w b l i n v (p, a, b)$ computes the inverse Weibull cumulative distribution function for the given probability using the parameters a and b.

The inverse of the Weibull cdf is

$x_p=[aln(\frac 1{1-p}]^{(\frac 1b)}I_{[0,1]}(p)$

Parameters:

$p$ (input, double)
The probability,0 < p < 1.
$a$ (input, double)
The scale parameter, a, of the required Weibull distribution, must be positive(a > 0.0).
$b$ (input, double)
The shape parameter, b, of the required Weibull distribution, must be positive (b > 0.0).
$xp$ (output, double)
The value of the variate,$x_p$