Dear Colleagues,

I'm using redefined cdf from GATExplorer to analyse microarray data. They
work OK with rma, but they don't with gcrma. Does this have an easy
solution? Bellow you can see commands and messages.

> dtst <- ReadAffy()

> dtst@cdfName <- "genemappermouse4302"

> pdtst <- gcrma(dtst)
Adjusting for optical effect......Done.
Computing affinities[1] "Checking to see if your internet connection
works..."
[1] "Environment genemappermouse4302probe was not found in the Bioconductor
repository."
Error in get(probepackagename) :
  object 'genemappermouse4302probe' not found

> affinfo <- compute.affinities("genemappermouse4302")
Computing affinities[1] "Checking to see if your internet connection
works..."
[1] "Environment genemappermouse4302probe was not found in the Bioconductor
repository."
Error in get(probepackagename) :
  object 'genemappermouse4302probe' not found

> pdtst <- rma(dtst)
Background correcting
Normalizing
Calculating Expression
>

Looking forward,

Omar

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