For a first overview run demo("MALDIquant").
Main classes:
MassPeaks : Represents a peak list of a single
spectrum.MassSpectrum : Represents a single spectrum.The accompanying website (see below) provides example R scripts to illustrate the functionality of this package, too.
Website:
vignette("MALDIquant", package="MALDIquant").demo("MALDIquant").library(help="MALDIquant").