[BioC] combine two microarray datasets based on affymatrix and cDNA array

[Avinash [guest]]

Hi,
I am trying to intermingle two timeseries expression data from two different platform (affymatrix and cDNA array).To follow a common index system, I mapped the probesets and cDNA clones (from above given platforms, respectively) to unique entrez Ids. Only common Ids are retained (~7500).
How can I integrate or compare these two datasets together at intensity level?


 -- output of sessionInfo(): 


R version 2.15.2 (2012-10-26)
Platform: x86_64-pc-linux-gnu (64-bit)

locale:
 [1] LC_CTYPE=en_US.UTF-8    LC_NUMERIC=C            LC_TIME=en_IN          
 [4] LC_COLLATE=en_US.UTF-8  LC_MONETARY=en_IN       LC_MESSAGES=en_US.UTF-8
 [7] LC_PAPER=C              LC_NAME=C               LC_ADDRESS=C           
[10] LC_TELEPHONE=C          LC_MEASUREMENT=en_IN    LC_IDENTIFICATION=C    

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     


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