This function plots the results of an HCA analysis of a <code>"Spectra"</code> object.  This is not called directly by the user -- <code><a href="/link/hcaSpectra?package=ChemoSpec&version=2.0-2" rd-options="" data-mini-rdoc="ChemoSpec::hcaSpectra">hcaSpectra</a></code> and <code><a href="/link/hcaScores?package=ChemoSpec&version=2.0-2" rd-options="" data-mini-rdoc="ChemoSpec::hcaScores">hcaScores</a></code> use it (see those pages for examples).

multivariate

hplot

cluster

plotHCA

A collection of functions for plotting spectra (NMR, IR etc) and carrying out various forms of top-down exploratory data analysis, such as HCA, PCA and model-based clustering.  The design allows comparison of data from samples which fall into groups such as treatment vs. control.  Robust methods appropriate for this type of high-dimensional data are available.  ChemoSpec is designed to be very user friendly and suitable for people with limited background in R.

plotHCA: Plot Dendrogram for Spectra Object

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References