affy (version 1.50.0)

readin: Read Expression Date Sets

Description

Reads a comma-delimited file containing the expression values of the dilution and spike-in data sets and creates a ExpressionSet

Usage

read.dilution(filename)
read.spikein(filename, cdfName=c("hgu95a","hgu133a"), remove.xhyb=TRUE)
read.newspikein(filename)

Arguments

filename

character containing the filename to be read.

cdfName

are we reading data from the hgu95a or hgu133a spike-in experiment?

remove.xhyb

logical. If TRUE possible cross hybridizers are removed from the HGU133A spikein. See remove.hgu133a.xhyb.

Value

• An ExpressionSet.

Details

The file to be read must be comma-delimited with the first row containing the cel filenames (case sensitive). The first column must be the Affymetrix gene identifiers. read.dilution will put things in the right place.

read.newspikein is a wrapper to read results from the hgu133a spikein experiment.