nlsModel: nlsModel

In GSperanza/RxpsG_2.3-1: Processing Tool for X-ray Photoelectron Spectroscopy Data

nlsModel

Description

nlsModel function to perform the Lev. Marq. peak fitting This is a modified version of the nlsLM() function to avoid the frequent non-convergence problems arising when multiple constraints are set on a given XPS CoreLine

Usage

nlsModel(form, data, start, wts, Niter, upper = NULL)

Arguments

form	expresson containing the fitting function to be evaluated
data	the XPSCoreline to be fitted
start	the starting estimates for the fitting function
wts	optional numeric vector of weights. If present weighted least squares is performed
Niter	max iteration allowed
upper	upper,lower bounds for the estimates

GSperanza/RxpsG_2.3-1 documentation built on Feb. 11, 2024, 5:09 p.m.