28.1.23 Chapman

Function

y=a(1-e^{-bx})^c

Brief Description

Chapman-Richards function to describe the cumulative growth curve.

Sample Curve

CFF Image072.jpg

Parameters

Number: 3

Names: a, b, c

Meanings: a = coefficient, b = coefficient, c = coefficient

Lower Bounds: none

Upper Bounds: none

Script Access

nlf_chapman(x,a,b,c)

Function File

FITFUNC\CHAPMAN.FDF

Category

Exponential