Re: [Ifeffit] Ifeffit Digest, Vol 111, Issue 5

Hi All There has been much discussion of this at the recent Q2XAFS meeting. Proceedings are I believe being reviewed at the moment. From I think some consensus of those attending, the most critical and most portable data was [mu/rho] versus E, with uncertainties; or mu versus E. Secondary data

Re: [Ifeffit] Ifeffit Digest, Vol 155, Issue 16

Dear Jason Good topic We have published a few papers discussing analysis with thickness distributions and roughness. Normally the XERT method will address this especially for small samples. Particularly see J. L. Glover, C. T. Chantler, M. D. de Jonge, ‘Nano-roughness in gold revealed from

Re: [Ifeffit] Ifeffit Digest, Vol 159, Issue 5

Hi All Most of them can be downloaded from either here https://www.researchgate.net/profile/Christopher_Chantler/ or here www.ph.unimelb.edu.au/~chantler/opticshome/papers.html Christopher Chantler, Professor, FAIP Editor-in-Chief,

Re: [Ifeffit] Ifeffit Digest, Vol 162, Issue 17

Topic 1: We have a routine /edit within ifeffit (our modified version) which propagates and fits uncertainty. Working on a couple of minor details before passing it on to Matt and Bruce for general use. Topic 3: Monochromator glitches should be eliminated in absorption spectra under normal

Re: [Ifeffit] Ifeffit Digest, Vol 170, Issue 7

You really need to know the number of actual data points, which must come from the actual data. You should also know the experimental uncertainties of each point. Most standard procedures map the actual data to a uniform grid, sometimes with smoothing of the original data. Then the

Re: [Ifeffit] Ifeffit Digest, Vol 170, Issue 19

Note that in general any and every smoothing operation reduces the information content of the data and its ability to reveal structure. Also, many of the smoothing algorithms change the data point values at vertices, so change the data prior to analysis. Hence in general avoid unless you know

Re: [Ifeffit] Ifeffit Digest, Vol 173, Issue 1

Thanks Fred and well suggested. I also encourage all interested. -- Christopher Chantler, Professor, FAIP, Fellow American Physical Society Editor-in-Chief, Radiation Physics and Chemistry Chair, International

Re: [Ifeffit] Ifeffit Digest, Vol 170, Issue 21

eblptekt...@mail.gmail.com> Content-Type: text/plain; charset="utf-8" Hi Chris, On Thu, Apr 20, 2017 at 5:02 PM, Christopher Thomas Chantler < chant...@unimelb.edu.au> wrote: > Note that in general any and every smoothing operation reduces the > information content of th