Lorentz

Contents 1 Function 2 Brief Description 3 Sample Curve 4 Parameters 5 Script Access 6 Function File 7 category

Function

\[ y=y_0+\frac{2A}\pi \frac w{4\left( x-x_c\right) ^2+w^2}\]

Brief Description

Lorentzian peak function.

Sample Curve

Parameters

Number: 4

Names: y0, xc, w, A

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

Lower Bounds: w > 0.0

Upper Bounds: none

Script Access

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

Function File

FITFUNC\LORENTZ.FDF

category

Origin Basic Functions, Peak Functions, PFW, Spectroscopy, Statistics