"plotDensity"(this, subset=NULL, types=NULL, ..., col=seq_along(this), lty=NULL, lwd=NULL, annotate=TRUE, add=FALSE, verbose=FALSE)"all",
"pmmm", "pm", and "mm".plotDensity.AffymetrixCelFile().vector of colors for each of the arrays.vector of line types for each of the arrays.vector of line widths for each of the arrays.FALSE, a new plot is created, otherwise the generated
graphics is added to the current plot.AffymetrixCelSet.