[BioC] multtest question

[Phguardiol at aol.com]

Hi,
I d like to know how to convert a text file in which the first column is the 
probe set # (affy chips) and the other columns are signals, with a first raw 
having the "legends". In summary how can I transform this file into a matrix 
of expression levels, of gene identifiers, and a vector of class labels ?
thanks
Philippe

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