[Ifeffit] Fitting Problems via Artemis

[hsnuboy at ksu.edu]

Dear Bruce,

I attached the apj file of magnesium orthovanadate. If you change the
k-range, says, from 4~10 to 3~10. The fitting results will vary. Or you
can change other stuffs. Somtimes the results are consistantly,
somtimes not.

By the way, I wonder if my first sell DW factor is about -0.0001 and the
uncertainties is +/-0.0015. Can I say that it is possible for positive
DW factor for my first sell fitting? Thus, my fitting is reasonable?

Sincerely,

Yu-Chuan

Quoting Bruce Ravel <ravel at phys.washington.edu>:

> On Friday 24 September 2004 03:52 pm, hsnuboy at ksu.edu wrote:
> > 3. Sometimes, The results obtained from Artemis seems not the same.
> > Says, the guess parameters and uncertainties may be varied even if
> you
> > input the same data for different time.Has anyone met this problem
> > before?
>
> Yu-Chuan,
>
> I have seen this happen, but the situation was somewhat unusual.  I
> would like
> to see a project file for which this happens reproducibly.
>
> B
>
> --
>  Bruce Ravel  -----------------------------------
> ravel at phys.washington.edu
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>
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>
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>  EXAFS software:
> http://feff.phys.washington.edu/~ravel/software/exafs/
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