I am not sure, but the first thing I would do would be to add
from yt.units import Mpccm
At the top and see what happens next.
Best,
Stephanie
On Tue, Sep 12, 2017 at 11:36 AM Ashley Jarvis
Hi all,
I’m attempting to adapt the example script for plotting star formation rates (found at http://yt-project.org/doc/analyzing/analysis_modules/star_analysis.html#star...) to work with output data from a simulation run using Enzo. However, when I attempt to run the script, I get the following error:
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File "PlotSFR.py", line 26, in <module> sfr = StarFormationRate(data, star_mass=mass_old, star_creation_time=ct_old, volume=sp.volume()) File "/usr/local/anaconda/lib/python2.7/site-packages/yt/analysis_modules/star_analysis/sfr_spectrum.py", line 115, in __init__ self._ds.quan(1.0, 'Mpccm**3').units File "/usr/local/anaconda/lib/python2.7/site-packages/yt/units/yt_array.py", line 1355, in __new__ dtype=dtype, bypass_validation=bypass_validation) File "/usr/local/anaconda/lib/python2.7/site-packages/yt/units/yt_array.py", line 430, in __new__ units = Unit(input_units, registry=registry) File "/usr/local/anaconda/lib/python2.7/site-packages/yt/units/unit_object.py", line 257, in __new__ unit_data = _get_unit_data_from_expr(unit_expr, registry.lut) File "/usr/local/anaconda/lib/python2.7/site-packages/yt/units/unit_object.py", line 572, in _get_unit_data_from_expr unit_data = _get_unit_data_from_expr(unit_expr.args[0], unit_symbol_lut) File "/usr/local/anaconda/lib/python2.7/site-packages/yt/units/unit_object.py", line 566, in _get_unit_data_from_expr return _lookup_unit_symbol(str(unit_expr), unit_symbol_lut) File "/usr/local/anaconda/lib/python2.7/site-packages/yt/units/unit_object.py", line 657, in _lookup_unit_symbol "symbols." % symbol_str) yt.units.unit_registry.UnitParseError: Could not find unit symbol 'Mpccm' in the provided symbols.
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I am using version 3.3.5 of yt.
Does anyone know how I can resolve this? Any suggestions would be greatly appreciated.
Thanks, Ashley
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-- -- Dr. Stephanie Tonnesen Alvin E. Nashman Postdoctoral Fellow Carnegie Observatories, Pasadena, CA stonnes@gmail.com