regress.biplot {biplotEZ}

Regression biplot

Description

Computes regression biplot axes

Usage

## S3 method for class 'biplot'
regress(
  bp,
  Z,
  group.aes = NULL,
  show.group.means = TRUE,
  axes = c("regression", "splines")
)

Arguments

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.

Value

an object of class biplot.

Examples

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