On Mon, Aug 20, 2012 at 9:44 AM, Bruce Ravel
<bravel@bnl.gov> wrote:
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
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