Re: [Ifeffit] Bug Report importing file.
Just a quick idea on why I cannot import the .txt file attached with previous email.
I realized that the files contain 11948 points ! (it's QEXAFS data).
Athena might have an hard limit of 8200 points that may be imported in a single file.
Best Regards,
Samy Ould-Chikh
KAUST Catalysis Center
Bldg.3,Level 4, #4231
4700 King Abdullah University of Science & Technology
Thuwal 23955-6900
Kingdom of Saudi Arabia
Tel: +966 12 8084486
E-mail: samy.ouldchikh@kaust.edu.sa
Website: http://kcc.kaust.edu.sa/Pages/Home.aspx
-----Original Message-----
From: Samy Ould-Chikh
Sent: Sunday, July 24, 2016 10:56 AM
To: XAFS Analysis using Ifeffit
According to http://millenia.cars.aps.anl.gov/pipermail/ifeffit/2013-August/006762.html limit is 8192 It is possible to rebin the data in Athena...in multiple steps...what it first imports, then export, then attach the missing higher E data, re-import, rebin...using a near edge step size of 0.2 eV, 0.05 invAng in the EXAFS and 2 eV in the pre-edge, these two steps were sufficient to reduce the data size to 555 points. The match between original and rebin does show some small differences but I didn't deglitch first. I don't like the steps in the original mu(E) either - rounding off too soon, or is it there at this level in the raw data? ...discrete noise/quantization error at the 1:800 level versus 'traditional exafs' 10^6 counts (1:1000) On 7/24/2016 1:15 AM, Samy Ould-Chikh wrote:
Just a quick idea on why I cannot import the .txt file attached with previous email.
I realized that the files contain 11948 points ! (it's QEXAFS data). Athena might have an hard limit of 8200 points that may be imported in a single file.
Best Regards, Samy Ould-Chikh
KAUST Catalysis Center Bldg.3,Level 4, #4231 4700 King Abdullah University of Science & Technology Thuwal 23955-6900 Kingdom of Saudi Arabia
Tel: +966 12 8084486 E-mail: samy.ouldchikh@kaust.edu.sa Website: http://kcc.kaust.edu.sa/Pages/Home.aspx
-----Original Message----- From: Samy Ould-Chikh Sent: Sunday, July 24, 2016 10:56 AM To: XAFS Analysis using Ifeffit
Subject: Bug Report importing file. Hello,
I have some issue to import a file in Athena: just a simple x-y column (.txt attached with this email).
Ti K-edge. Data range in the file : 4916.30 up to 5436.88 eV. Issue: only data up to 5260 eV are imported (see screenshot: bug-importation).
Version: Demeter 0.9.24 System: Windows 7 Professional SP1
Well, I hope it's just not me not being able to find a proper way to import the file...
Best Regards, Samy Ould-Chikh
KAUST Catalysis Center Bldg.3,Level 4, #4231 4700 King Abdullah University of Science & Technology Thuwal 23955-6900 Kingdom of Saudi Arabia
Tel: +966 12 8084486 E-mail: samy.ouldchikh@kaust.edu.sa Website: http://kcc.kaust.edu.sa/Pages/Home.aspx
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Many thanks Robert.
I was able to import everything after your suggestion.
About : "I don't like the steps in the original mu(E) either - rounding off too soon"
It's because I have brutally rounded the data in excel. The initial data had 6 digits and I was wondering if it could be an issue for Athena.
Thanks again.
Best Regards,
Samy Ould-Chikh
KAUST Catalysis Center
Bldg.3,Level 4, #4231
4700 King Abdullah University of Science & Technology
Thuwal 23955-6900
Kingdom of Saudi Arabia
Tel: +966 12 8084486
E-mail: samy.ouldchikh@kaust.edu.samailto:eman.ahmedbahjri@kaust.edu.sa
Website: http://kcc.kaust.edu.sa/Pages/Home.aspx
From: Ifeffit [mailto:ifeffit-bounces@millenia.cars.aps.anl.gov] On Behalf Of Robert Gordon
Sent: Sunday, July 24, 2016 5:17 PM
To: ifeffit@millenia.cars.aps.anl.gov
Subject: Re: [Ifeffit] Bug Report importing file.
According to
http://millenia.cars.aps.anl.gov/pipermail/ifeffit/2013-August/006762.html
limit is 8192
It is possible to rebin the data in Athena...in multiple steps...what it first imports, then export, then
attach the missing higher E data, re-import, rebin...using a near edge step size of 0.2 eV, 0.05 invAng
in the EXAFS and 2 eV in the pre-edge, these two steps were sufficient to reduce the data size to 555 points.
The match between original and rebin does show some small differences but I didn't deglitch first.
[cid:image002.jpg@01D1E68F.0824DB40]
I don't like the steps in the original mu(E) either - rounding off too soon,
or is it there at this level in the raw data?
...discrete noise/quantization error at the 1:800 level versus 'traditional exafs' 10^6 counts (1:1000)
On 7/24/2016 1:15 AM, Samy Ould-Chikh wrote:
Just a quick idea on why I cannot import the .txt file attached with previous email.
I realized that the files contain 11948 points ! (it's QEXAFS data).
Athena might have an hard limit of 8200 points that may be imported in a single file.
Best Regards,
Samy Ould-Chikh
KAUST Catalysis Center
Bldg.3,Level 4, #4231
4700 King Abdullah University of Science & Technology
Thuwal 23955-6900
Kingdom of Saudi Arabia
Tel: +966 12 8084486
E-mail: samy.ouldchikh@kaust.edu.samailto:samy.ouldchikh@kaust.edu.sa
Website: http://kcc.kaust.edu.sa/Pages/Home.aspx
-----Original Message-----
From: Samy Ould-Chikh
Sent: Sunday, July 24, 2016 10:56 AM
To: XAFS Analysis using Ifeffit
participants (2)
-
Robert Gordon
-
Samy Ould-Chikh