[Ifeffit] larch can not deconvolve my data

[Matt Newville]

Hi Shaofeng,

Sorry for the trouble.  It turns out that the energy array for that
spectrum had two energy points that were different by 0.001 eV.    That's
not that uncommon, really.  But deconvolution needs to interpolate the data
onto a uniform energy grid, and it was using the smallest difference as the
energy step size. That made the array size very large, and the
deconvolution was just taking forever.

I have fixed the deconvolution code to better guard against absurdly tiny
energy steps or very large arrays.  But it will be a little while before I
make another release, so I also attach a project file where I moved the
energy values for the two offending points so that they are different by
0.05 eV.    I think that should work for you with the latest released
code.

Cheers,





On Thu, Apr 9, 2020 at 8:36 PM Shaofeng Wang <wangshaofeng at iae.ac.cn> wrote:

> Dear all,
>
> Recently I am trying to deconvolve a As K-edge xafs data using larch. But
> the xas viewer program always crash. I tried other K edge spetra, it worked
> well. I attached my data, please give me some help.
>
>
>
>
>
>
> 祝
> 好运！
> Best regards,
>
> 王少锋，Shaofeng Wang, Ph.D
> 中国科学院沈阳应用生态研究所，Institute of Applied Ecology, CAS
> Email: wangshaofeng at iae.ac.cn; sf.wang at hotmail.com
> Address: Wenhua Road 72, Shenyang
>
>
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-- 
--Matt Newville <newville at cars.uchicago.edu> 630-252-0431
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