28.1.7 Beta

Function

y=y_0+A[1+(\frac{W_2+w_3-2}{w_2-1})(\frac{x-x_c}{w_1})]^{w_2-1}[1-(\frac{w_2+w_3-2}{w_3-1})(\frac{x-x_c}{w_1})]^{w_3-1}

Brief Description

Beta peak function for use in chromatography and spectroscopy.

Sample Curve

CFF Image028.jpg

Parameters

Number: 6

Names: y0, xc, A, w1, w2, w3

Meanings: y0 = offset, xc = center, A = amplitude, w1 = width, w2 = width, w3 = width

Lower Bounds: w1 > 0.0, w2 > 1.0, w3 > 1.0

Upper Bounds: none

Script Access

nlf_beta(x,y0,xc,A,w1,w2,w3)

Function File

FITFUNC\BETA.FDF

Category

Origin Basic Functions, Peak Functions