[Ifeffit] Question about the R_factor in artemis/ifeffit
Bruce Ravel
ravel at phys.washington.edu
Sat May 1 09:48:39 CDT 2004
On Friday 30 April 2004 06:33 pm, Wayne Lukens wrote:
> First, thank you for the great software! I am a former EXAFSPAK
> user and have been really impressed by Artemis/ifeffit. It's easier
> to use, more flexible, and gives more reasonable errors for the fit
> parameters.
Well, welcome to the "family" and thanks for the kind words!
> My question is about the value of the R_factor for R-space
> fitting. This seems to be the R_factor for the real component of
> the Fourier transform only although the fitting is performed on both
> the real and imaginary components. Is there a reason that the
> contribution of the imaginary component to the R_factor is not
> included?
A quick perusal of Matt's source code does not suggest that what you
say is true. Could you be more specific as to why you think that the
R-factor is computed incorrectly?
B
--
Bruce Ravel ----------------------------------- ravel at phys.washington.edu
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Naval Research Laboratory phone: (1) 202 767 2268
Washington DC 20375, USA fax: (1) 202 767 4642
NRL Synchrotron Radiation Consortium (NRL-SRC)
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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/
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