28.1.71 GaussAmp

Function

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

Brief Description

Amplitude version of Gaussian peak function.

Sample Curve

Image212.png

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

Derived Parameters

Refer to the curve in the Sample Curve section:

Full Width at Half Maximum: FWHM = sqrt(ln(4)) * 2 * w

Area under the curve: Area = A * 2 * w * sqrt(PI / 2)

Script Access

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

Function File

FITFUNC\GAUSSAMP.FDF

Category

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