Plot cluster structure

Note that this function requires the patterns argument to be set to TRUE in the call to SLOPE(). Calling this function on a SLOPE object without patterns will result in an error.

Usage

plotClusters(
  x,
  plot_signs = FALSE,
  color_clusters = TRUE,
  include_zeroes = TRUE,
  show_alpha = FALSE,
  alpha_steps = NULL,
  palette = "viridis",
  ...
)

Arguments

x

an object of class 'SLOPE'

plot_signs

logical, indicating whether to plot signs of estimated coefficients on the plot

color_clusters

logical, indicating whether the clusters should have different colors

include_zeroes

logical, indicating whether zero variables should be plotted. Default to TRUE

show_alpha

logical, indicating whether labels with alpha values or steps in the path should be plotted.

alpha_steps

a vector of integer alpha steps to plot. If NULL, all the steps are plotted.

palette

a character string specifying the color palette to use for the clusters. This is passed to grDevices::hcl.colors().

...

additional arguments passed to graphics::image().

Value

Invisibly returns NULL. The function is called for its side effect of producing a plot.

See also

SLOPE(), graphics::image(), graphics::text().

Examples

set.seed(10)
X <- matrix(rnorm(10000), ncol = 10)
colnames(X) <- paste0("X", 1:10)
beta <- c(rep(10, 3), rep(-20, 2), rep(20, 2), rep(0, 3))
Y <- X %*% beta + rnorm(1000)
fit <- SLOPE(X, Y, patterns = TRUE)

plotClusters(fit)

plotClusters(fit, alpha_steps = 1:10)