Re: [Ifeffit] Ratio of peak amplitudes in R-space

Hi Jatin, Scott, Chris, Just to add to Chris's and Scott's response: analyzing the peak height of the magnitude of the Fourier transform of an EXAFS spectra would be collapsing an entire spectra to a single value. We know that EXAFS is a complicated function of k and R, and such a simplistic analysis are bound to be error-prone. You might be able to find a set of spectra (say, a temperature dependence with no coordination number change and a tiny distance change) where the change in peak height would map well to sigma2. But if that works, so would a very simple modeling of the system. The danger is that there is no way to tell when such a simplistic analysis is failing. In short: don't do it. --Matt