On Thursday 05 February 2004 04:41 pm, dmc@pdx.edu wrote:
Bruce,
I succeeded in merging the k-plots of several files in Athena, but failed at opening the data and graphing it in Artemis for fitting purposes. Is this merging function purely for use in Athena? You'd made it sound like I could use that data for fitting. If it is possible to export the merge to Artemis for a fit, let me know how.
That is my intention. I do so all the time. In Athena: 1. mark several groups 2. merge them in mu(E), norm(E), or chi(k) 3. make the merged group the current one (i.e. highlighted in orange and displayed in the main window) 4. from the File menu, select "Save chi(k)", which is the 11th item in the menu, not counting the separators. This will write out a three-column file, where the columns are k, chi, and the standard deviation. (The std. dev. is only written out for merged groups -- for not-merged groups a two column k/chi fiule will be written). Remember where you wrote the file and what name you gave it, because you will need that information in Artemis. In Artemis: 1. In the File menu, select "Open data file or project file". Use the file selection widget to find the file you just saved in Athena. It should read in without problem. If you think you have uncovered a bug or if you think something weird is happening with your specific data, then my advice to you is the same as to the fellow who was having a data import problem a few minutes ago: I will need to see the data and you should look at http://leonardo.phys.washington.edu/~ravel/software/exafs/bugs.html for more information on submitting a bug report. B -- Bruce Ravel ----------------------------------- ravel@phys.washington.edu Code 6134, Building 3, Room 222 Naval Research Laboratory phone: (1) 202 767 5947 Washington DC 20375, USA fax: (1) 202 767 1697 NRL Synchrotron Radiation Consortium (NRL-SRC) Beamlines X11a, X11b, X23b 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/