pc {BeadExplorer}R Documentation

Principal component plot

Description

Produces a sample PCA plot

Usage

pc(data, xpca = 1, ypca = 2, col = NULL, verbose = FALSE, labels=colnames(data), pos = 2, offset = 0.5, cex.text=0.8,...)

Arguments

data A matrix of expression values
xpca Principal component to plot on x-axis
ypca Principal component to plot on y-axis
col A vector of colours used to represent each sample - default is rainbow colours
verbose Logcial specifying if commentray should be outputted
labels A vector of character labels to use for labeling. Default is sample names
pos Position relative to plot point to label samples, see text
offset Distance from plot point to place for labels, see text
cex.text Text size relative to default
... Arguments passed to plot

Details

Provides a sample PCA plot of data. Should only be required for customised analysis - defaults are used in plotSamples

Value

Nothing

Author(s)

Gareth Elvidge gareth.elvidge@well.ox.ac.uk

See Also

plotSamples

Examples

data(examplebeadData)
pc(exprs(examplebeadData))

[Package BeadExplorer version 1.2.0 Index]