I've spent the entire day working on this histogram. It looked pretty funky at first, with a lot of outliers. I've designed it so that I can easily put in different constraints. At the moment, I've been getting rid of spectra that have a signal-to-noise ratio that is smaller than 10, and if either the velocity of the white dwarf or M dwarf is above an absolute value of 600 km/s (also another indicator of crappy data). So far it has been kind of frustrating. Hopefully by the end of the day, my histogram will look a little better.