Could I have a data file or two? That way so I could try to walk through what you did. I need to be able to reproduce the problem here in front of myself in order to have a hope of fixing it.
It is certainly true that Athena is not completely reliable noticing that chi(k) data is chi(k) data. You certainly should make sure the data type is set correctly.
Thanks for taking the time to report the problem.
B
On 09/15/2014 03:02 PM, Foster, Andrea wrote:
Hi Bruce,
thanks for your response..I think that my problem is in the
specification of energy unit and/or the numerator/denominator. In the
project I sent, I imported the files specifying energy as "k" and
nothing for numerator/denominator. The plotter would then display the
EXAFS as k2 weighted and I found that I couldn't change the plot display.
in a later attempt at importing data, I still specified energy as "k"
but then checked "chi" for the numerator. The result is still
strange...the data will be imported, but when I try to change
k-weighting and replot, I can't re-plot. I can plot the data in "R" or
"q" space, but can't ever go back to k...
anyway, here is the screen shot you requested. The data are sixpack
generated, I would think totally compatible.
thanks for the help, andrea
Inline image 1
________________________________________
Andrea L. Foster, PhD
U.S. Geological Survey, GMEG Science Center
345 Middlefield Rd., MS 901
Menlo Park, CA 94025
650-329-5437 (t)
650-329-5491 (f)
On Sat, Sep 13, 2014 at 12:20 PM, Bruce Ravel <bravel@bnl.gov
<mailto:bravel@bnl.gov>> wrote:
Andrea,
Your project file is horribly, unrecoverably broken. A project file
in that state is unusual in the sense that I do not know how you got
there and I do not know how to replicate it.
To understand what went awry, I would have to know more about how
you got to that point. For starters, it would help to see the data
that you imported into Athena to begin with. A screenshot of the
state of the column selection dialog right before clicking the OK
button would probably help also. I'll probably have more questions
after that.
Bottom line, you found a neat, new (to me) way of breaking my
program. Clearly the work of an experienced EXAFS person!! :P
On 09/12/2014 08:51 PM, Foster, Andrea wrote:
Hello all,
I am an experienced EXAFS person, but not having a lot of luck
using Athena.
I am trying to set up an Athena project for linear combo fitting.
I can get the data + model compounds imported, and I can save a
project
file. However, after saving and closing the file, the next time
I try
to open, I am asked to re-import the data from the project file
(I think
this is a normal part of Athena)...
Inline image 4
...but when I try to select importing as chi(k) instead of u(E),
I get
the following message
This is certainly not related to the problem with the project file,
but I want to point out that the box in the project selection dialog
is labelled "Plot as", not "Import as". Its purpose is to display
the data in different ways to help you decide what data you might
want to import. Data is always imported from a project file in the
same manner as it was imported from the raw data file regardless of
how you choose to plot it before clicking the import selection button.
B
Inline image 2>
after "ok-ing" this message away, I can't get any farther.
Importing
the data as u(E) doesn't give the appropriate results.
I am also attaching the aforementioned project file.
thanks for any help with this, andrea
__________________________________________
Andrea L. Foster, PhD
U.S. Geological Survey, GMEG Science Center
345 Middlefield Rd., MS 901
Menlo Park, CA 94025
650-329-5437 (t)
650-329-5491 (f)
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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
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