[yt-dev] [yt_analysis/yt] The TotalMass derived quantity fails when no particles are present (issue #559)

[Nathan Goldbaum]

New issue 559: The TotalMass derived quantity fails when no particles are present
https://bitbucket.org/yt_analysis/yt/issue/559/the-totalmass-derived-quantity-fails-when

Nathan Goldbaum:

As brought up by Mark Krumholz on the mailing list:

http://paste.yt-project.org/show/3445/

We should check to make sure particles are in the dataset before including them instead of assuming they're there.

Responsible: ngoldbaum