On 10/01/2014 10:58 PM, Austin Krehel wrote:
Dear IFEFFIT Representative,
Representative?? Umm... OK. That's me, I suppose :)
I am a graduate student and am just now learning about EXAFS data plotting. I am having a problem with opening the data that I collected last month at Bulk-XANES line X11A (NSLS). I have tried the new and old versions of Athena, and they are both not reading the .001 files, which according to my professor, should be read since this has worked for him in the past on the old version. When I try opening the files, it says they "could not be read by ifeffit as a data file".
I have attached one of the .001 files, in case that may help. And help or suggestions will be greatly appreciated.
Your file seems to have been altered since it was written to disk at the beamline. Here is what the top of the file looks like: XDAC V1.4 Datafile V1 "AsFiveStd.001" created on 8/5/14 at 15:59:30 on X-11A Diffraction element= Si(111). Ring energy= 2.80 GeV E0= 11867.00 NUM_REGIONS= 2 SRB= -100 -50 100 SRSS= 5 0.5 SPP= 2 2 Settling time= 0.30 Offsets= 5117.00 729.00 16629.00 0.00 0.00 Gains= 7.00 8.00 9.00 0.00 1.00 As Five standard edge scan sample pressed in kapton tape -------------------------------------------------------------------------------- Energy I0 I Iref XIA00AsK XIA01AsK XIA02AsK XIA03AsK XIA04AsK XIA05AsK XIA06AsK XIA07AsK XIA08AsK XIA09AsK XIA10AsK XIA11AsK XIA12AsK IntTime 11766.97378 246679.0000 1503253.0000 356315.0000 3.0000 63.0000 2.0000 1.0000 21.0000 13.0000 6.0000 2.0000 19.0000 5.0000 0.0000 3.0000 4.0000 2.0000 and so on. The problem is in the line that says XIA01AsK and the following 12 lines. When written at the beamline, those lines and the one that begins with "Energy" were all on one line without any carriage returns. Athena relies upon Ifeffit to determine of a file can be interpreted as data. If Ifeffit cannot read a file, then Athena cannot (unless a plugin is written to recognize and process the particular file). because that line is broken up in your file, Ifeffit is unable to interpret it. Because of that, Athena thinks it's not data. When I fix that problem by hand in a text editor, Athena has no issue reading the data. You have a few options: 1. Edit the file by hand to fix the line that got broken up. 2. Edit the file by hand and simply delete the problematic lines. 3. Write a little program that does either 1. or 2. for you. 4. Figure out what caused the file to be altered. If I had to venture a guess, I would guess that you read the file in Word or WordPad and then software "helped" you by reformatting the file. If you have copies of the data exactly as written at the beamline, start over from scratch and don't do whatever broke up that line. 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://bruceravel.github.io/home/ Software: https://github.com/bruceravel Demeter: http://bruceravel.github.io/demeter/