spkTools (version 1.28.0)

spkDensity: Spike-in Density Plot

Description

A density plot of the non-spike-in expression with a rug of the average expression at each spike-in level.

Usage

spkDensity(object, spkSlopeOut, cuts=TRUE, label = NULL, ...)

Arguments

object

a SpikeInExpressionSet object

spkSlopeOut

the output from the spkSlope function

cuts

if TRUE vertical lines are drawn at the expression values separating low vs medium and medium vs high ALE strata

label

a character string to insert into the plot title

...

arguments passed to the plot function

Value

Density plot is produced.

Details

This function requires the output of spkSlope.

Examples

data(affy)
affySlope <- spkSlope(affy)
spkDensity(affy,affySlope)