[proFit-list] Gaussian Peak fitting

[pro Fit Support]

Dear Alicia

Thanks for the enquiry, and apologies for the late reply.

For binning your data, use the Binning Tool in the Calc menu. You can use this to tabulate the bins.

Once you have tabulated the bins, choose “Peaks” -> “Gauss Peaks” from the Func menu. In the parameter window, set the number of peaks (# peaks) to 1. You probably don’t have a background under the peak, so set “bg-deg” to 0 and “bg-0” as well. While editing bg-0, uncheck “Use for Fitting” because you don’t want to fit the background offset.

Then, enter guesses for the other parameters of the Gaussian, in particular its center x0-1. Then, run a fit (e.g. by choosing Curve Fit from the Calc menu)

Hope this helps

Best

Kurt
QuantumSoft

> On 18 Mar 2021, at 16:32, Alicia Cruz-Uribe <alicia.cruzuribe at maine.edu> wrote:
> 
> Dear ProFit users,
> 
> I have been using ProFit for many years for plotting, but I have never used the statistical functions and I am not well versed in statistics. I have a very basic set of data that I have binned to make a histogram, then normalized the bins so that I can compare multiple data sets, and I need to fit a Gaussian curve to these data. I am having trouble figuring out the exact steps to take to accomplish this using ProFit. 
> 
> Many thanks,
> ______________________________________________________
> Dr. Alicia Cruz-Uribe (she/her/hers)
> Edward Sturgis Grew Assistant Professor of Petrology and Mineralogy
> Graduate Coordinator, School of Earth and Climate Sciences
> University of Maine
> 5790 Bryand Global Sciences Center
> Orono, ME  04469
> (207) 581-4494
> alicia.cruzuribe at maine.edu <mailto:alicia.cruzuribe at maine.edu>_______________________________________________
> proFit-list mailing list
> proFit-list at quantum-soft.com
> http://quantum-soft.com/mailman/listinfo/profit-list_quantum-soft.com

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