[Ifeffit] problems installing athena et al under ubuntu 16.04 LTS

[Robert Gordon]

Hi Juan,

I just installed demeter and larch on an Ubuntu 16.04lts system today.
I can reproduce something like your error. I use the 10K Cu data in the 
examples
folder.

If I import it and don't select the numerator on import, the plot window 
has issues
(~10^307 axis limit), but the file gets listed in the data list.

I can get 10^9 for the energy axis by specifying keV instead of eV for 
the import energy.

i.e. Matt's question: Did you import the data correctly?
(and why 10^9 if it is supposedly multiplying by 1000?...would have 
thought 10^6...)

Did you import a number of datasets with mixed keV and eV energy scales? 
I did that once
where the first file was in keV and subsequent ones in eV and the energy 
scale was decidedly
off for the subsequent ones.

cheers,
Robert

On 11/23/2016 7:45 PM, Matt Newville wrote:
> Hi Juan,
>
> On Wed, Nov 23, 2016 at 12:43 PM, Juan de la figuera 
> <juan.delafiguera at gmail.com <mailto:juan.delafiguera at gmail.com>> wrote:
>
>     Dear all,
>
>     I have been installing demeter from git under ubuntu 16.04 LTS,
>     following the non-root instructions from:
>     https://gist.github.com/waveform80/3959252
>     <https://gist.github.com/waveform80/3959252>
>
>     I also installed xraylarch from git. Xaylarch is only missing:
>     #=== Warning: Some recommended Python Packages are missing:
>         epics:  needed for using the EPICS control system
>         pyFAI:  needed for xrd modules
>
>     It seems to work, but when I try to open a file that can be open
>     properly from Athena installed on Windows, I get:
>
>     Trying Larch server:
>     /home/juan/perl5/lib/perl5/x86_64-linux-gnu-thread-multi/Demeter/share/ini/larch_server.in
>     <http://larch_server.in>i
>     Trying Larch server:  larch_server -p 4968 start
>     larch_server port=4968: started
>
>     gnuplot> set xrange [ 6900130000 : 7955610000 ]
>                          ^
>             line 0: warning: integer overflow; changing to floating point
>
>     gnuplot> set xrange [ 6900130000 : 7955610000 ]
>         ^
>             line 0: warning: integer overflow; changing to floating point
>
>
>     and although it opens the data in a gnuplot window, the scale is
>     off (7x10^9 instead of 7x10^3). I am assuming once it is confused
>     about the scale, it makes a mess with the data.
>
>
>
> Did you import the data correctly?
>
> Did you try this with more than one data file?
>
> Why did you not include that data file in your request for help?
>
> If you had included the (or a) file giving you trouble, it would allow 
> someone else to try to reproduce the problem, which might actually 
> lead to an answer.
>
> --Matt
>
> PS:  Athena version 0.8.061 is more than 5 years old and is not supported.
>
>
>
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