[yt-dev] KeyError accessing field_units from profile?

[Rasmi Elasmar]

I tried fooling around with the test data (the Enzo cosmology datasets in
particular) and couldn't find one that gave me a reasonable number of
halos. This is obnoxious, but here
<https://drive.google.com/open?id=0BwK-7Z3S5X_yMDNyZ1RTcG56SFU>'s a ~3.5gb
archive of the data I've been using (with halo catalog and test script). If
that's not useful, let me know!


Rasmi

On Mon, May 23, 2016 at 2:41 PM, Nathan Goldbaum <nathan12343 at gmail.com>
wrote:

> Hi Rasmi,
>
> Is there any chance you can make a small test script that triggers the
> error you're seeing, using one of the public test datasets on
> yt-project.org/data? There are several Enzo datasets there that should be
> usable.
>
> That will make it much easier for one of us to reproduce the error you're
> seeing.
>
> -Nathan
>
> On Mon, May 23, 2016 at 1:36 PM, Rasmi Elasmar <re2300 at columbia.edu>
> wrote:
>
>> Hi all,
>>
>> I'm using yt 3.2.3. I've created some derived fields (specifically
>> 'dark_matter' and 'stars'), and I'm trying to plot radial profiles of
>> ('gas', 'density'), ('deposit', 'dark_matter_density'), and ('deposit',
>> 'stars_density'). I'm using yt.create_profile(sphere, 'radius', field)
>> (where field is one of the above) and appending each of those profiles to a
>> list called profiles. Those are created fine, and accessing
>> profile[1].field_units (for example) gives '{('deposit', 'stars_density'):
>> g/cm**3}', which is what I expect.
>>
>> The issue occurs when I call yt.ProfilePlot.from_profiles(profiles,
>> labels=labels) -- I get an error in profile_plotter.py when accessing
>> profile.field_units on a profile:
>>
>>> Traceback (most recent call last):
>>>   File "/work/03330/tg826294/applications/scripts/halo_profiles.py",
>>> line 50, in <module>
>>>     plot = yt.ProfilePlot.from_profiles(profiles, labels=labels)
>>>   File
>>> "/work/03330/tg826294/applications/pythonenv/lib/python2.7/site-packages/yt/visualization/profile_plotter.py",
>>> line 415, in from_profiles
>>>     return cls._initialize_instance(obj, profiles, labels, plot_specs,
>>> y_log)
>>>   File
>>> "/work/03330/tg826294/applications/pythonenv/lib/python2.7/site-packages/yt/visualization/profile_plotter.py",
>>> line 365, in _initialize_instance
>>>     obj._setup_plots()
>>>   File
>>> "/work/03330/tg826294/applications/pythonenv/lib/python2.7/site-packages/yt/visualization/profile_plotter.py",
>>> line 339, in _setup_plots
>>>     xtitle, ytitle = self._get_field_title(fname, profile)
>>>   File
>>> "/work/03330/tg826294/applications/pythonenv/lib/python2.7/site-packages/yt/visualization/profile_plotter.py",
>>> line 633, in _get_field_title
>>>     y_unit = profile.field_units[field_y]
>>> KeyError: ('gas', 'density')
>>
>>
>> I tried explicitly passing the units in yt.create_profile(sphere,
>> 'radius', field, units={field: units[field]}) (where units is a dictionary
>> and units[field] gives 'g/cm**3'), but I still get the error. I also tried
>> adding the units to ds.field_units, and that didn't help either.
>>
>> You can see my code here
>> <https://gist.github.com/rasmi/6d936b077527e245025b73059e59b9c0>.
>>
>> I also tried creating all the profiles at once with:
>>
>>> profile = yt.Profile1D(sp, 'radius', 32, minimum, maximum, True,
>>> weight_field=None)
>>> profile.add_values(fields.values())
>>
>>
>> But everything was 0, and I got errors with other approaches (I can
>> detail them if you're curious, but I think the
>> yt.ProfilePlot.from_profiles() is probably the best approach, right?).
>>
>> Any ideas? Thanks for your help!
>>
>> Rasmi
>>
>> _______________________________________________
>> yt-dev mailing list
>> yt-dev at lists.spacepope.org
>> http://lists.spacepope.org/listinfo.cgi/yt-dev-spacepope.org
>>
>>
>
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