recently I've needed some simple pearson's correlations and found out that ols can't handle missing values elegantly. fill_m doesn't do the job if you need also p-values. So I changed ols to filter rows from y and ivs that contain bad values, then clear the flag before continuing. This is based on a flag.

Thing is, I've never used git so far, I managed to clone and pull, but am unsure about how to commit GLM.pp and push it to the server for you to review.