This is a bioinformatics question involving R. I am a new bee in R and Bioconductor. I am a new bee in R and Bioconductor. I have a .gpr file from GenePix experiments. I want to load this file using marray package of Bioconductor and extract the foreground and background median values from the Cy5 and Cy3 channels. I was able to load the file. But need help in extracting the above mentioned subset of data.
Most of the samples I see on the internet are based upon the swirl dataset, which is loaded when marray package is loaded automatically. I don't see any sample where a .gpr file is processed.