with
a compromise between a 6 nm error bar on the low side and an infinitely
large error bar on the high side. Compromising with infinity, however,
rarely yields sensible results.
Thus my question is if anyone can think of a way to extract some sense of
these asymmetric error bars from IFeffit
Yes; it's a case of trying to distinguish between a few boulders and
lots of pebbles; the total volume isn't the issue.
What I'm looking at is something like surface/volume ratio, but with
surface being path-dependent and gradual. For a nearest-neighbor
path, only the top monolayer of
: [Ifeffit] Asymmetric error bars in IFeffit
Hi all,
I'm puzzling over an issue with my latest analysis, and it seemed like the sort
of thing where this mailing list might have some good ideas.
First, a little background on the analysis. It is a simultaneous fit to four
samples, made
From: ifeffit-boun...@millenia.cars.aps.anl.gov ifeffit-boun...@millenia.cars.aps.anl.gov
To: XAFS Analysis using Ifeffit ifeffit@millenia.cars.aps.anl.gov
Sent: Fri Oct 22 16:23:08 2010
Subject: [Ifeffit] Asymmetric error bars in IFeffit
Hi all,
I'm puzzling over an issue
- Original Message -
From: Frenkel, Anatoly
To: ifeffit@millenia.cars.aps.anl.gov
Sent: Friday, October 22, 2010 6:20 PM
Subject: Re: [Ifeffit] Asymmetric error bars in IFeffit
Matthew, if you relied on FEFF as one part of the complex calculation, where
the other part
allows a simple
way of testing
for having it be bulk-like, by setting u=0.
mam
- Original Message -
From: Scott Calvin
To: XAFS Analysis using Ifeffit
Sent: Friday, October 22, 2010 1:23 PM
Subject: [Ifeffit] Asymmetric error bars in IFeffit
Hi all,
I'm puzzling over
From: ifeffit-boun...@millenia.cars.aps.anl.gov
ifeffit-boun...@millenia.cars.aps.anl.gov
To: XAFS Analysis using Ifeffit ifeffit@millenia.cars.aps.anl.gov
Sent: Fri Oct 22 16:23:08 2010
Subject: [Ifeffit] Asymmetric error bars in IFeffit
Hi all,
I'm puzzling over an issue with my latest
@millenia.cars.aps.anl.gov
Sent: Friday, October 22, 2010 2:38 PM
Subject: Re: [Ifeffit] Asymmetric error bars in IFeffit
On a related subject, now I understand why we use the concept of chemical
transferability of amplitudes and phases by recycling the same FEFF path for
different systems
-boun...@millenia.cars.aps.anl.gov
To: XAFS Analysis using Ifeffit ifeffit@millenia.cars.aps.anl.gov
Sent: Fri Oct 22 18:01:17 2010
Subject: Re: [Ifeffit] Asymmetric error bars in IFeffit
Another reason, from my point of view, is that FEFF wasn't accurate enough to
use on its own without
