Biplot for ASCA models

Usage

# S3 method for class 'asca'
biplot(
  x,
  factor = 1,
  comps = 1:2,
  xlim = NULL,
  ylim = NULL,
  col = "darkgray",
  expand = 1,
  labels,
  legendpos,
  ...
)

Arguments

x: asca object.
factor: Factor number or name.
comps: integer vector of selected components.
xlim: numeric vector of length 2 for x-axis limits of the loadings.
ylim: numeric vector of length 2 for y-axis limits of the loadings.
col: vector of colours for score axes and loading axes and points/texts.
expand: numeric expansion for the scores, defaulting to 1.
labels: optional. If "names", row names are used as labels. If "numbers", row numbers are used as labels. (Can also be a vector of labels.)
legendpos: character position of legend.
...: Additional arguments to plot and scoreplot.

Value

No return, only a plot.

Examples

# Load candies data
data(candies)

# Basic ASCA model with two factors and interaction
mod <- asca(assessment ~ candy * assessor, data=candies)

# Biplot
biplot(mod)


# Biplot with named loadings
biplot(mod, labels="names")