astropy/specutils — pull request #37 by wkerzendorf (2013-10-28 21:59:35+00:00)
Title: Dispersion change

This PR is aimed at replacing the clunky `.dispersion` and replacing with `.wavelength`, `.frequency` and `.energy`.

`.dispersion` still exists but is not listed in the documentation - I think for now that's a good compromise.

(this PR is based on #36)