Thanks. In this case, is the number of neibors equal to N * SO2 in the model result? Regards HM Bruce Ravel 写:
On Monday, August 20, 2012 09:02:28 PM Huaming Guo wrote:
I am using the (D)Artemis for EXAFS fitting. However, the "N" is set to be a constant in the (D)Artemis. We can not set the variable for this parameter. How can I do that if I model non crystalline samples using (D)Artemis? Thanks a lot.
In Artemis, N is a pure number, but S02 can take a math expression.
In the EXAFS equation, N and S02 are multiplied together.
Thus, you might consider parameterizing the amplitude by setting N to 1 and putting all of the parameterization in the math expression for S02.
B
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Bruce Ravel ------------------------------------ bravel@bnl.gov
National Institute of Standards and Technology Synchrotron Methods 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