urbach/hadron — pull request #11 by kostrzewa (2014-07-21 11:45:33+00:00)
Title: upon removal of columns, recompute inverse covariance matrix for error computation in effectivemass

fit.effectivemass: when resampling fails and columns are removed from the data because there are too many NAs, the inverse covariance matrix needs to be recomputed and not just restricted