Logistipk

Contents

Function

y=y_0+\frac{4Ae^{-\frac{x-xc}w}}{\left( 1+e^{-\frac{x-xc}w}\right) ^2}

Brief Description

Logistic peak function.

Sample Curve

Image:CFF Image312.jpg

Parameters

Number: 4

Names: y0, xc, w, A

Meanings: y0 = offset, xc = center, w = width, A = amplitude

Lower Bounds: w > 0.0

Upper Bounds: none

Script Access

nlf_logistpk(x,y0,xc,w,A)

Function File

FITFUNC\LOGISTPK

Category

Origin Basic Functions, Growth/Sigmoidal, Peak Functions
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