[R] Hotelling T-test in R - error?

Hey there, I am trying to do a series of hotelling t-tests in R. But I keep getting the following error: > mat <- > cbind(Dataset$Ula.l.sl1A,Dataset$incisordepth.residuals,Dataset$lclhm.residuals,Dataset$lclpsl2.residuals,Dataset$llaheight.residuals,Dataset$llas.residuals,Dataset$lm3.m1,Dataset$

[R] Labeling points on plot on relative warp scores?

Hi there, I am plotting relative warp scores (equivalent to pca scores) and I want to label (color code and shape) the points by group. I can't figure out how to do this beyond simple plotting. plot(RW1, RW2); Do I need to make vectors of each group and then plot them separately onto the same