Regression biplot — regress.biplot • biplotEZ

Computes regression biplot axes

Usage

# S3 method for class 'biplot'
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.

an object of class biplot.

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