When I tried the following: p = pc.add_phase_object(dd, ["Density","IonizationFraction","CellMassMsun"], lazy_reader = True) this gave me a phase plot of IonizationFraction vs Density, and the z axis colorbar shows a distribution of different masses, but if I used the following: p = pc.add_phase_object(dd, ["Density","CellVolumeCode","IonizationFraction"], lazy_reader = True) I get no distribution in the z colorbar at all. The z values seem to be put into place but not accumulated when multiple y vs x have the same value. Can anyone verify this behavior? I was looking through the documentation http://yt.enzotools.org/doc/modules/plotting.html?highlight=phase#yt.raven.P... but the "accumulation" parameter sets whether the y values are summed along x instead of the z colorbar. The plots are attached. From G.S.
