[Ifeffit] Linear Combination Fitting in Athena

[Barton, David (DG)]

Skya,
Seeing an example Athena file would help, but my guess is that one or
more of your standards are being rejected by the fit (i.e. near zero),
when this occurs the LCF routine can finish without the sum forced equal
to zero.  If this is the case you can just rerun the fit excluding the
standard that is near zero and the sum should now equal 1.

Dave
  _________________________________ 
  David Barton, 

-----Original Message-----
From: ifeffit-bounces at millenia.cars.aps.anl.gov
[mailto:ifeffit-bounces at millenia.cars.aps.anl.gov] On Behalf Of Skya
Fawcett
Sent: Monday, September 17, 2007 3:07 PM
To: ifeffit at millenia.cars.aps.anl.gov
Subject: [Ifeffit] Linear Combination Fitting in Athena

I'm trying to do linear combination fitting on a number of samples, and
its working well for the most part, with 4 exceptions. There are 4
samples, of 22, that I can't get to sum to 1, despite the fact that I
have
"sum to 1" checked off before fitting. I've tried reprocessing the data,
and tried reinstalling Athena with no luck. Any ideas?


Skya Fawcett
PhD Candidate
Department of Geological Sciences and Geological Engineering
Queen's University, Kingston, Canada

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