Predict samples to display on the biplot — prediction • biplotEZ

This function makes predictions of sample points, variables and means and displays them on the biplot.

prediction(bp, predict.samples = NULL, predict.means = NULL, which = 1:bp$p)

Arguments

bp: an object of class biplot obtained from preceding function biplot().
predict.samples: a vector specifying which samples to predict.
predict.means: a vector specifying which group means to predict.
which: a vector specifying which variable to do the prediction.

Value

A list object called predict appended to the object of class biplot with the following elements:

samples: a vector of indices of samples which are being predicted.
predict.means: a vector of group names of groups for which the means are being predicted.
which: the vector of indices variables which are being predicted.
predict.mat: the matrix of predicted samples.
predict.means.mat: the matrix of predicted group means.

Examples

biplot(data = iris[,1:4]) |> PCA(group.aes=iris[,5], show.class.means = TRUE) |> 
prediction(141:145,1:3) |> plot()