On Wednesday 09 November 2005 22:52, Carlo Segre wrote:
Click to the Interpretation tab and select "Guess, Def, Set" in the middle pane. YOu should see all the variables that are defined. My guess is that you have "dr" instead of something like "delr". Change the name to "delr" and then click on the individual paths and change any occurence of "dr" to "delr".
Hi folks, It's even easier since the October 2005 release of Artemis. On the "Guess/Def/Set" page, there are all sorts of goodies in the menu that pops up when you right-click on a parameter. One of those goodies says "Change name of <parameter> globally". This will prompt you for a new name and change all instances of that parameter on the Guess/Def/Set page and on all path pages. In short, it automagically does all the tedious work that Carlo suggested. As for this message, which is also new in Artemis, perhaps I should explain in more detail. This parameter uses a name which has special meaning in Ifeffit: dr You must change this parameter name before attempting to fit. One common example of this sort is a variable named "dr1", which should be changed to something like "dr_1" or "drone". I had a bug report a couple of months ago about very confusing behavior for which hitting the big green button twice in a row would produce different results. Very weird. The problem turned out to be a parameter name collision. That is, one of the guessed parameter in that fit had the name of a word that has special meaning in Ifeffit. I was very confused by this behavior in that I had trouble understanding the exact conditions in which this problem was triggered. At the time, it seemed as though the most prudent solution was to disallow all of Ifeffit's reserved words as possible parameter names. So now, if you choose one of those words as a parameter name, Artemis will refuse to run the fit and insist that you change that parameter's name. Since I didn't want to make people do all the tedious work that Carlo described, I wrote the global change function. Upon re-reading that error message, I agree that it isn't very clear. Hopefully this email helps clear up the water. B -- Bruce Ravel ---------------------------------------------- bravel@anl.gov Molecular Environmental Science Group, Building 203, Room E-165 MRCAT, Sector 10, Advance Photon Source, Building 433, Room B007 Argonne National Laboratory phone and voice mail: (1) 630 252 5033 Argonne IL 60439, USA fax: (1) 630 252 9793 My homepage: http://cars9.uchicago.edu/~ravel EXAFS software: http://cars9.uchicago.edu/~ravel/software/exafs/