I have run an agilent gene expression chip and applied biosystem card (TLDA). I have analysed the data with Agi4x44PreProcess (chiP) and HTqPCR (qpcr) and created two expression sets. Now I want to compare the data, I am able to do exporting the data and rearranging outsied R. Can you please give some suggestion or some coding example how to do in R? Thank you Marco