[Ifeffit] Importance and Edge Step

Bruce Ravel bravel at anl.gov
Tue Jun 7 17:25:45 CDT 2005

On Tuesday 07 June 2005 11:57, Gerrit Schmithals wrote:
> I had an Athena project with some references loaded as chi(k)-data and
> some unknown samples as chi(k) as well. Athena won't let me start the
> Linear Fit-Dialog stating that it (she) needs at least three
> xmu-spectra. Changing the preference to "standard fit in  k-space" does
> not help. Workaround: I just loaded some dummy xmu-Spektra and can now
> work with the dialog.
> Also, only these xmu-spectra can be selected from the "standards pluck
> boxes", the only way to insert the chi(k)-references is to use "use
> marked groups". That is a bit of a problem when you have to move one of
> the groups up because its value is negative. Workaround is to move up
> the groups in in Data group section.

Hmm... it seems that I had not done any testing with chi(k) records as
standards.  There are several problems.  Thanks for pointing this out.

> - Is there any possibility to plot the linear fit and the data in
> R-space right away? (without first saving it as a datagroup)

That can be done.  Good idea.

> - It would be nice to be able to store the relative weigths together
> with the newly created dataset.

I don't really understand this.  The results of the LCF fit are saved as title
lines for the new data group, but you must be looking for something else.


 Bruce Ravel  ----------------------------------- bravel at anl.gov  -or-
						  ravel at phys.washington.edu
 Environmental Research Division, Building 203, Room E-165
 Argonne National Laboratory                        phone: (1) 630 252 5033
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 My homepage:    http://feff.phys.washington.edu/~ravel 
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