28.1.180 Weibull


Function

 y=y_0+\frac ra\left( \frac{x-u}a\right) ^{r-1}\exp \{-\left( \frac{x-u}a\right) ^r\}

Brief Description

Weibull probability density function.

Sample Curve

CFF Image508.png

Parameters

Number: 4

Names: y0, a, r, u

Meanings: y0 = offset, a = scale, r = shape, u = location

Lower Bounds: a > 0.0,

Upper Bounds: none

Script Access

 nlf_weibull(x,y0,a, r, u)

Function File

FITFUNC\WEIBULL.FDF

Category

Statistics