28.1.158 SGompertz

Function

y=ae^{-\exp (-k(x-x_c))}

Brief Description

Gompertz Growth Model for Popuplation Studies, Animal Growth.

Sample Curve

CFF Image444.jpg

Parameters

Number: 3

Names: a, xc, k

Meanings: a = amplitude, xc = center, k = coefficient

Lower Bounds: a > 0.0, k > 0.0

Upper Bounds: none

Script Access

nlf_sgompertz(x,a,xc,k)

Function File

FITFUNC\GOMPERTZ.FDF

Category

Growth/Sigmoidal