Re: [Ifeffit] Consultation on Reduced Chi2

2016-05-23 Thread Jesús Eduardo Vega Castillo
Thank you very much Matt 2016-05-23 9:21 GMT-03:00 Matt Newville : > Jesus, > > > > On Mon, May 23, 2016 at 7:08 AM, Jesús Eduardo Vega Castillo < > jeve...@gmail.com> wrote: > >> Dear list, >> >> I am back with a new consultation on EXAFS fitting within Artemis. >> >> I have made a fit and obtai

Re: [Ifeffit] Consultation on Reduced Chi2

2016-05-23 Thread Matt Newville
Jesus, On Mon, May 23, 2016 at 7:08 AM, Jesús Eduardo Vega Castillo < jeve...@gmail.com> wrote: > Dear list, > > I am back with a new consultation on EXAFS fitting within Artemis. > > I have made a fit and obtained a reduced Chi2 value of 391 and R-factor of > 0.014 using 9 variables. Then I ha

[Ifeffit] Consultation on Reduced Chi2

2016-05-23 Thread Jesús Eduardo Vega Castillo
Dear list, I am back with a new consultation on EXAFS fitting within Artemis. I have made a fit and obtained a reduced Chi2 value of 391 and R-factor of 0.014 using 9 variables. Then I have added two more paths increasing the number of variables up to 12 and then I obtained a reduced Chi2 of 3039

Re: [Ifeffit] consultation

2010-01-29 Thread Shelly Kelly
Dear Mingliang, I have a book chapter that details how Athena normalizes data and LCF. I'll send it to you if you want. Just email me directly at dr.sdke...@gmail.com. It is about 8 Meg so make sure you have room in your mail box for it. Cheers, Shelly 2010/1/28 康明亮 : > Dear, > I want to to ask

Re: [Ifeffit] consultation

2010-01-29 Thread Richard Mayes
Mingliang, For more information on self-absorption, read the links found here: http://www.xafs.org/Experiment/OverAbsorption This includes a link to a discussion on the mail list about self-absorption and how to understand it. -Richard 2010/1/29 Welter, Edmund > Dear Mingliang, > > Thanks for

Re: [Ifeffit] consultation

2010-01-29 Thread Welter, Edmund
Dear Mingliang, Thanks for your explain. But I am still puzzled. Following your instruction, I performed *Self-Absorption *for the samples, choosing *XANES(Fluo) *from *algorithm*, but I did not know the real meaning of *Formula*. Does it mean the species formula which I wish to detect? Or t

Re: [Ifeffit] consultation

2010-01-28 Thread 康明亮
Dear Edmund, Thanks for your explain. But I am still puzzled. Following your instruction, I performed Self-Absorption for the samples, choosing XANES(Fluo) from algorithm, but I did not know the real meaning of Formula. Does it mean the species formula which I wish to detect? Or the whole com

Re: [Ifeffit] consultation

2010-01-28 Thread Welter, Edmund
Dear Mingliang, simply because Athena is not normalising the height of the highest peak (the white line) but the EXAFS region, that is it starts some 10 eV above the edge. You choose the normalisation region in Athenas settings. You can see in your plots that it does this job quite well, the

Re: [Ifeffit] consultation

2010-01-27 Thread Bruce Ravel
On Wednesday 27 January 2010 09:14:48 am 康明亮 wrote: > Dear Bruce, > I want to sonsult a question about using Linear Combination fitting. I > normalized all the standards (measured in transmission mode) and samples > (fuorescence mode) with Athena, and then wish to use LCF to quantify each > uniq

[Ifeffit] consultation

2010-01-27 Thread 康明亮
Dear Bruce, I want to sonsult a question about using Linear Combination fitting. I normalized all the standards (measured in transmission mode) and samples (fuorescence mode) with Athena, and then wish to use LCF to quantify each unique component in the samples. But I noted that the normalized s

Re: [Ifeffit] consultation

2010-01-20 Thread Zajac, Dariusz A.
Zajac, Dariusz A. Sent: Wednesday, January 20, 2010 4:54 PM To: XAFS Analysis using Ifeffit Subject: Re: [Ifeffit] consultation Hi I didnt have a problem energy column = 2 energy units eV data type xmu.dat signal

Re: [Ifeffit] consultation

2010-01-20 Thread 康明亮
Dear Bruce, Yes, as I change the file location, the problem was solved. Thanks very much for youe help. Best wishes Mingliang 在2010-01-20?23:47:11,"Bruce?Ravel"??写道: >On?Wednesday?20?January?2010?10:31:12?am?康明亮?wrote: >>?Dear,?I?want?to?consult?why?I?can?not?open?the?XANES?raw?data(like?the

Re: [Ifeffit] consultation

2010-01-20 Thread Jens Kruse
Ifeffit digest..." Today's Topics: 1. consultation (???) -- Message: 1 Date: Wed, 20 Jan 2010 23:31:12 +0800 (CST) From: ??? To: "XAFS Analysis using Ifeffit" Subject: [Ifeffit] consultation Message-I

Re: [Ifeffit] consultation

2010-01-20 Thread Zajac, Dariusz A.
Sent: Wednesday, January 20, 2010 4:31 PM To: XAFS Analysis using Ifeffit Subject: [Ifeffit] consultation Dear, I want to consult why I can not open the XANES raw data(like the attached file Na2SeO3.dat) by Athena on my laptop(Windows system). It

Re: [Ifeffit] consultation

2010-01-20 Thread Matt Newville
Bruce's guess is correct: Athena cannot open files with non-ASCII characters in the file or path name. --Matt ___ Ifeffit mailing list Ifeffit@millenia.cars.aps.anl.gov http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit

Re: [Ifeffit] consultation

2010-01-20 Thread Bruce Ravel
On Wednesday 20 January 2010 10:31:12 am 康明亮 wrote: > Dear, I want to consult why I can not open the XANES raw data(like the > attached file Na2SeO3.dat) by Athena on my laptop(Windows system). It > prompt that : coulldn't read...(See the attached picture. file). Wish to > obtain help from you.T

Re: [Ifeffit] consultation

2009-11-09 Thread Matt Newville
Hi Mingliang, Sorry for the trouble. It's a little hard to tell what's gone wrong, but here are some hints: The icon to run athena (and others) simply runs the program "runner.exe" in the Ifeffit "bin" folder (usually C:\Program Files\Ifeffit\bin). This program sets the path and other environme

[Ifeffit] consultation

2009-11-09 Thread 康明亮
Dear, I have encountered a problem when using IFEFFIT. As I double click the Athena icon on the desktop, it prompted the following concent: Cannot execute grwnd.exe to open the graphics window. How to resolve this problem? Thank you! Best regards Mingliang ___