I am looking for a Lorentzian peak fit.

[Nava]

I have to do a lorentzian peak fit for a spectral peak to determine full width at half max and later the area under the curve, I am using Labview 6i with windows 98 on a pc based copmuter

[Darren]

Hello,

I found another discussion thread in the Developer Exchange that mentions a user having success doing Lorentzian peak fits with the Levenberg-Marquardt VI that ships with LabVIEW. Here's the URL to that discussion thread:

http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RNAME=ViewQuestion&HOID=5065000000080000007E020000&ECategory=LabVIEW.LabVIEW+General

Also in this thread are a few suggestions as to other places to look on the web for peak fitting routines in LabVIEW.

I hope this helps you out. Good luck with your application, and have a pleasant day.

Sincerely,

Darren Nattinger
Applications Engineer
National Instruments