Dear Patricia,
Linear combination fits are a nice tool, but one should handle them with great
care
- the background subtraction process can introduce significant errors. You have
to fine tune the parameters by hand if you are using Athena to get reasonable
results
- sometimes PCA (principle
Hi Patricia,
When you say "worse than the initial one," what do you mean?
If it's a "worse" match than nonsensical fit results, but makes some physical
and chemical sense, I'd personally argue it's a much better fit ;)
What you are doing seems reasonable to me, but I would further recommend
Hi,
I am a theoretical chemistry PhD student working on fitting experimental
spectra with computed spectra in order to get a better understanding of the
composition. In the LCF process with athena, I have found that when I allow
"sum coefficients to 1", I get an unphysical negative coefficient of
Dear Valerie
Sorry! I don't know where I got the idea that it was Fe, I was probably working
on Fe data at the time of writing. Having looked back I can see Mo.
"I am using Larch XAS Viewer for the first time to analyze some Mo XANES data.
It is fairly straightforward, however I am running
