Plot spectra matrix — plotmat • hyperSpec

Plots the spectra matrix.

plotmat(
  object,
  y = ".row",
  ylab,
  col = palette_alois(20),
  ...,
  contour = FALSE
)

Arguments

object: hyperSpec object
y: character giving the name of the extra data column to label the y axis.
ylab: y axis label, defaults to "row" and the label of the extra data column used for the y axis, respectively.
col: see graphics::image()
...: further parameters for graphics::image()
contour: should graphics::contour() be called instead of graphics::image()?

Details

If package plotrix is available, a color legend is plotted to the right. The right margin is set to at least 5 lines.

See also

graphics::image(), graphics::contour(), levelplot()

Author

Claudia Beleites

Examples

plotmat(laser, col = palette_alois(100))


plot(laser, "mat")

plotmat(laser)
plotmat(laser, contour = TRUE, add = TRUE)


## use different y axis labels

plotmat(laser, "t")


plotmat(laser, laser$t / 3600, ylab = "t / h")