Under the CoercetoMatrix line pertaining to a user error (when multiple columns have been read in, of equal length), and also a group vector. The comment ends w/ If your data contains columns of equal numbers of observations, try re-calling granova.1w \n on your data while setting group = NULL"
Why the reference to granova.1w? I'd expect granovagg.1w.
@rmpruzek writes: