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 -- 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