[Ifeffit] Problems with gnuplot graphics on Mac OS 10.12.1

Hi All, I just wanted to give an update to my earlier problems with the mysterious gnuplot errors. After editing the file Matt mentioned earlier, I decided to uninstall and install demeter to no avail. I then realized that I had been relying on the latest version of xquartz (the x11 system)

Re: [Ifeffit] Peakfitting CeO2 data in Athena

Thank you Matthew and Matt for your responses. Sorry if these are silly questions...so then does that mean arctan and gaussian shouldn't be used together? What was meant by "it does not inherently include any understanding of what that peak is"? That these functions aren't representative of the

Re: [Ifeffit] Peakfitting CeO2 data in Athena

The usual justification for using gaussians for peaks, aside from "it works" is that there's inhomogeneous broadening over and above the lifetime. The usual justification for using an arctan for the step is exactly the opposite. Instrument broadening is often taken to be gaussian. Net result:

Re: [Ifeffit] Peakfitting CeO2 data in Athena

Hi Stephanie, On Wed, Dec 7, 2016 at 12:33 PM, Stephanie Laga wrote: > Dear all, > > I am trying to extract the % Ce(III) from some CeO2 nanoparticle XAS data. I > have been using moved the peak fitting function in Athena to model the > XANES with an arctan background