affy (version 1.50.0)

transform.ProbeSet: A function to transform a ProbeSet

Description

A function to transform the PMs and MMs in a ProbeSet.

Usage

## S3 method for class 'ProbeSet':
transform(`_data`, fun = I, \dots)

Arguments

_data
object of ProbeSet-class.
fun
a function. The identity function by default.
...
optional arguments for fun.

Value

  • An object of class ProbeSet.

Details

The function fun is applied to the slots pm and mm. The function vsnh in the package vsn is a recommended argument for fun.

Examples

Run this code
library(affydata)

data(Dilution)

ppset.name <- sample(featureNames(Dilution), 1)
ppset <- probeset(Dilution, ppset.name)[[1]]
ppset.log <- transform(ppset, fun=log)

par(mfrow=c(1,2))
plot(ppset)
plot(ppset.log)

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