Some doubts about Artemis
Hi everyone, I have two doubts about the use of the Artemis software: 1) Is it possible to use the coordination number of one path (N) as a variable? Because I tried to do it, but I am unable to write any letter in the path parameters set. 2) When I change the 'Fourier transform parameters' in order to perform a new fit, the "window range" (green line) in the plotting screen wont change the range (at least visually) and remains between the defaut values (r from 1 to 3 or k from 2 to 10). Is there any form to modify this? Thank you in advance, Miguel ________________________________________________________________________________ Miguel Angel Gomez Gonzalez PhD. Student Institute of Agricultural Sciences (ICA) Spanish National Research Council (CSIC)
Hi Miguel,
On Aug 5, 2013, at 5:06 PM, Miguel A. Gómez
1) Is it possible to use the coordination number of one path (N) as a variable? Because I tried to do it, but I am unable to write any letter in the path parameters set.
Because N only appears in the EXAFS equation as part of the product S02*N, coordination number can be fit by putting the variable in the S02 field. For example, the coordination number in the N box can be changed to 1, and the entry in the N field can be changed to S02*N, with N then made a "guess" variable. Of course, you can't sensibly fit every N and fit S02...something has to be set.
2) When I change the 'Fourier transform parameters' in order to perform a new fit, the "window range" (green line) in the plotting screen wont change the range (at least visually) and remains between the defaut values (r from 1 to 3 or k from 2 to 10). Is there any form to modify this?
Usually it changes the next time you plot. If it doesn't, you are experiencing a bug that is specific to your circumstances (hardware + OS + project). Those kinds of bugs are, unfortunately, difficult to track down. --Scott Calvin Sarah Lawrence College
On 08/05/2013 05:06 PM, Miguel A. Gómez wrote:
Hi everyone,
I have two doubts about the use of the Artemis software:
1) Is it possible to use the coordination number of one path (N) as a variable? Because I tried to do it, but I am unable to write any letter in the path parameters set.
See http://www.mail-archive.com/ifeffit@millenia.cars.aps.anl.gov/msg03646.html and the responses that follow. We've been answering questions on the mailing list for many years now. Searching through the archives is a really good use of time.
2) When I change the 'Fourier transform parameters' in order to perform a new fit, the "window range" (green line) in the plotting screen wont change the range (at least visually) and remains between the defaut values (r from 1 to 3 or k from 2 to 10). Is there any form to modify this?
As described, this is certainly not correct. Attached are two screen shots. For the first one, I imported a project file and immediately clicked the "Rk" button. I changed the values of kmax and Rmax, then clicked the "Rk" button again. The values were clearly updated correctly for the second plot. Please see my post to the mailing list from only 30 hours ago (!!) about the difference between an actionable bug report and complaining into the wind: http://millenia.cars.aps.anl.gov/pipermail/ifeffit/2013-August/011284.html B -- Bruce Ravel ------------------------------------ bravel@bnl.gov National Institute of Standards and Technology Synchrotron Science Group at NSLS --- Beamlines U7A, X24A, X23A2 Building 535A Upton NY, 11973 Homepage: http://xafs.org/BruceRavel Software: https://github.com/bruceravel
participants (3)
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Bruce Ravel -
Miguel A. Gómez -
Scott Calvin