[Ifeffit] Re: Problem with fit data export

Hi Matt, Thanks for looking into the export issue. For the moment, I have a patch for it. I was expecting only one output for the fit. I suppose the fit in k-space is essentially the same as in q-space but without the window contribution. To better understand what was happening, I took the fit in k-space and applied the window. The result then looked similar to the fit in q-space. Sorry for the confusion earlier—I understand it now. The feature is great for direct visualization of the fit in k-space. Best regards, On Wed, Oct 16, 2024 at 9:00 PM Matthew Newville via Ifeffit < ifeffit@millenia.cars.aps.anl.gov> wrote:

Hi Eugenio, Hm, sorry for the trouble. I thought I fixed saving filtered chi(k) (or a similar problem) a few months ago, but I see that too. I’ll look into it. I guess I am not sure I understand what you are saying about displaying the fits ZjQcmQRYFpfptBannerStart This Message Is From an External Sender This message came from outside your organization.

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Hi Eugenio,

Hm, sorry for the trouble. I thought I fixed saving filtered chi(k) (or a similar problem) a few months ago, but I see that too. I’ll look into it.

I guess I am not sure I understand what you are saying about displaying the fits for chi(k) and chi(q) [= filtered chi(k)]. Those plots don’t look wrong to me – should I be seeing something subtle?

--Matt

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*From:* Otal Eugenio via Ifeffit *Sent:* Monday, October 14, 2024 11:37 PM *To:* XAFS Analysis using Ifeffit *Cc:* Otal Eugenio *Subject:* [Ifeffit] Problem with fit data export

Dear all, I was exporting the filtered data and found Larch is not exporting the filtered data. No new files were found in the folder I was saving the files. I found a victory in doing it from the plotting window after fitting, File > Export

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Dear all,

I was exporting the filtered data and found Larch is not exporting the filtered data. No new files were found in the folder I was saving the files. I found a victory in doing it from the plotting window after fitting, File

...

Export data.

I exported the chi(k) with chi(q), chi(k) with the fit and chi(q) with the fit. All included bellow.

The signal in chi(k) with its fit and chi(q) with its fit, both match well.

The fit shown chi(k) and chi(q) has different aspects.

Am I wrong or the fit should look the same in both cases?

Is there any compensation for the window used? Do I need to change something in the configuration to export it properly? Best regards

(^ㅇᆽㅇ^)(=˃ᆺ˂=)(=🝦 ༝ 🝦=)

Eugenio H. OTAL

Assistant Professor Research Initiative for Supra Materials, Shinshu University 4-17-1 Wakasato, Nagano city. 380-8553, Japan eugenio_otal@shinshu-u.ac.jp

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Who is John Galt?

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