Friday, 22 October 2010

Adding the Clustering to the Expression Data

The easiest way to add the clustering to the Expression Data is to edit a separate file which can be used to update the phenoData element of filtered exprtession set. This will be needed for subsequent statistical testing and it is easier to do it this way rather than trying to edit individual phenoData elements. The file has to be a text csv file that can be created in any spreadsheet program. This is then read into R and attached to each of the normalised and filtered data files.

pd<- read.AnnotatedDataFrame("pheno_cluster.csv",sep="\t",quote = "\"'")

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