Regression biplot method

Usage

regress(bp, Z, group.aes=NULL, show.group.means = TRUE, 
               axes = c("regression", "splines"))

bp: an object of class biplot obtained from preceding function biplot().
Z: the matrix of coordinates of the samples
group.aes: vector of the same length as the number of rows in the data matrix for differentiated aesthetics for samples.
show.group.means: logical, indicating whether group means should be plotted in the biplot.
axes: the type of axes to be fitted to the biplot. Options are 'regression' for linear regression axes (default) and 'splines' for B-spline axes.

Object of class biplot

biplot(iris[,1:4]) |> regress(Z=cmdscale(dist(iris[,1:4]))) |> plot()