Bruce, Without those friendly warnings (reminders), beginners would likely fall down several rabbit holes before understanding many of the important steps necessary to get meaningful answers in EXAFS. I know I would have.
Chris ******************************************* Dr. Christopher Patridge Assistant Professor Department of Math and Natural Sciences D'youville College Contact: 315-529-0501 On Dec 5, 2013, at 1:19 PM, Bruce Ravel <bra...@bnl.gov> wrote: > On 12/05/2013 12:18 PM, Scott Calvin wrote: >> While I defend that principle as a very important one, I'm not >> claiming it applies in Matt's case--it probably doesn't. To reproduce >> features at high-R, it IS necessary to have a model (i.e. paths) that >> cover the high-R contribution, and it sounds like Matt does not have >> those paths included in his model. But it's not necessary to FIT up >> to high R. > > It doesn't apply. Matt filtered his data. Matt used paths that only > include Fourier components within the filtered band. To suggest that > it may somehow be reasonable that the fit could turn out other than > how it did runs a real risk of misleading this fellow who is, > apparently, a newcomer to EXAFS analysis. > >> P.S. My least favorite warning that Artemis provides is the one that >> tells you that you're including paths outside the fitting region, for >> just this reason. It's easy enough to change the preferences so that >> Artemis doesn't give that warning, and it's usually one of the first >> things I have my students do when they're first learning to fit. > > OK. Whatever. Instead of complaining about this, perhaps you should > consider hosannas of gratitude that I make it possible, easy even, to > accommodate preferences different from my own. > > B > > > -- > Bruce Ravel ------------------------------------ bra...@bnl.gov > > National Institute of Standards and Technology > Synchrotron Science Group at NSLS --- Beamlines U7A, X24A, X23A2 > Building 535A > Upton NY, 11973 > > Homepage: http://xafs.org/BruceRavel > Software: https://github.com/bruceravel > _______________________________________________ > Ifeffit mailing list > Ifeffit@millenia.cars.aps.anl.gov > http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit _______________________________________________ Ifeffit mailing list Ifeffit@millenia.cars.aps.anl.gov http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit
