group inpsection

I wrote code to make full-color images of Berlind's groups, so we can inspect the outliers in the magnitude gap distribution I discussed yesterday. The code isn't quite ready (because Blanton has to give me the R_vir code), but it is close. We find that the gap distribution is slightly larger than expected from the pure independent, Poisson sampling distribution (there are more groups with big gaps); the question is, do these large-gap clusters all have correctly computed magnitude gaps?