On Wednesday 14 January 2004 11:04 am, Kelly, Shelly D. wrote:
Golden Rule: You have to try A LOT of different models, always try to start with the simplest model and make it more complex as the data requires.
Shelly's response to Peter's question about sigma^2 values was great. In particular I liked the snippet I quote above so much that I want to be sure that everyone on the mailing list reads it again. ;-) It would be difficult to overstate the wisdom of that sentence. And it is applicable to every aspect of fitting data in general and of using Ifeffit and Artemis in specific. B -- Bruce Ravel ----------------------------------- ravel@phys.washington.edu Code 6134, Building 3, Room 222 Naval Research Laboratory phone: (1) 202 767 5947 Washington DC 20375, USA fax: (1) 202 767 1697 NRL Synchrotron Radiation Consortium (NRL-SRC) Beamlines X11a, X11b, X23b National Synchrotron Light Source Brookhaven National Laboratory, Upton, NY 11973 My homepage: http://feff.phys.washington.edu/~ravel EXAFS software: http://feff.phys.washington.edu/~ravel/software/exafs/