Re: [Ifeffit] Information content from Athena for Hamilton test?

2017-04-11 Thread Bruce Ravel
On 04/09/2017 11:59 PM, Will Bennett wrote: How is this value of "Information Content" determined in Athena? This is not explained well in the manual. The number Athena reports is the fitting range of the data divided by the core-hole lifetime of the edge measured. I am not certain that is

Re: [Ifeffit] Information content from Athena for Hamilton test?

2017-04-10 Thread Wayne Lukens
HI Will, I am not entirely sure how this value is determined in Athena, but the number of independent data in a XANES fit is the data range divided by the resolution. If you have a spectrum with a strong pre-edge peak, you can determine the resolution from its width. Otherwise, the resolution is a

[Ifeffit] Information content from Athena for Hamilton test?

2017-04-09 Thread Will Bennett
Hi everyone, Just a quick question regarding the "Information Content" output in Athena's LCF window. I've recently been playing around with using the Hamilton test (as outlined in Scott Calvin's book "XAFS for Everyone") to interrogate my combinatorics results. As many of you will know, this requ