Re: [Ifeffit] Spline range and FT range

2015-09-01 Thread 에너지환경소재연구팀
l <bra...@bnl.gov> 보낸 날짜: 2015년 9월 1일 화요일 오전 3:52 받는 사람: XAFS Analysis using Ifeffit 제목: Re: [Ifeffit] Spline range and FT range Hi Kug-Seung, I was at the XAFS conference last week, as were a bunch of the other folks who might answer a question like this. Guanghui pointed you at the Athena user

Re: [Ifeffit] Spline range and FT range

2015-08-31 Thread Bruce Ravel
Hi Kug-Seung, I was at the XAFS conference last week, as were a bunch of the other folks who might answer a question like this. Guanghui pointed you at the Athena user guide, which will help to some extent with your questions. On 08/25/2015 08:20 AM, 이국승(에너지환경소재연구팀) wrote: While I was

[Ifeffit] Spline range and FT range

2015-08-25 Thread 에너지환경소재연구팀
Hi everyone, While I was processing my data, I found that the FT features are changing as I change the spline range. I think the change is severe as my data contain a lot of noises at high-k regions (above 12k). The change is remarkable even when FT range is fixed and even when the spline

Re: [Ifeffit] Spline range?

2011-09-19 Thread Matt Newville
Wei, On Sun, Sep 18, 2011 at 9:10 AM, Wei Li we...@udel.edu wrote: Dear all, I am wondering about what range should be chosen in Athena? Some literature says from 1 to the end; some says from 0.5 to the end. What literature says this? Do you mean to imply that someone is saying it should be

[Ifeffit] Spline range?

2011-09-18 Thread Wei Li
Dear all, I am wondering about what range should be chosen in Athena? Some literature says from 1 to the end; some says from 0.5 to the end. Wei -- Wei Li Postdoc researcher Environmental Soil Chemistry Group Delaware Environmental Institute University of Delaware, Newark,19713

Re: [Ifeffit] Spline range?

2011-09-18 Thread Dr. Dariusz A. Zając
Dear Wei, the answer should be - resonable... Everything depends on the data quality, definition of the edge and energy. You have to keep in mind that this subtracts EXAFS oscillations from EXAFS experimental data. So in general, spline line should follow the atomic absorption kicaj W dniu

Re: [Ifeffit] Spline range?

2011-09-18 Thread Scott Calvin
Wei, You may not have looked at it yet, but the chapter draft I sent to you has several pages devoted to the topic. --Scott Calvin Sarah Lawrence College On Sep 18, 2011, at 10:10 AM, Wei Li wrote: Dear all, I am wondering about what range should be chosen in Athena? Some literature says