$$

FlatTopPeak

Description

A flat top peak function is defined as:

$$y=scale\ast (erfc((centre-0.5\ast width-x)/endGrad)-erfc((centre+0.5\ast width-x)/endGrad))+background$$

Properties (fitting parameters)

Name	Default	Description
Scale	-2400.0	The height of the mesa.
Centre	50.0	The location of the middle of the mesa.
EndGrad	3.0	The width of the transition between the base and the peak.
Background	2500.0	The baseline below the mesa.
Width	20.0	The breadth of the top of the mesa.

Categories: FitFunctions | SANS

Source

Python: FlatTopPeak.py