This function plots the results of an HCA analysis of a
Spectra object. Not generally called by the user --
hcaSpectra and hcaScores use it (see those pages
for examples).
plotHCA(spectra, hclst, sub.title, use.sym, leg.loc, ...)An object of S3 class Spectra.
A hclust object.
A character string for the subtitle.
Logical; if true, the color scheme will be black and lower-case letters will be used to indicate group membership.
Character; if "none" no legend will be drawn.
Otherwise, any string acceptable to legend.
Additional parameters to be passed to the plotting routines.
An object of class dendrogram. Side effect is a plot.