[BioC] is it possible to find sample batch # in CEL files?

[James F. Reid]

Hi Brian,

On 24/01/13 13:23, Brian Tsai wrote:
> Hi,
>
> I've been downloading raw CEL files from the gene expression omnibus, and
> have been trying to process them -- i'd like to account for batch effect
> when computing differential expression, but the authors didn't provide the
> information explicitly in their annotations. Is this information
> stored/retrievable through the CEL files through Bioconductor?
you should be able to access the date the chip was scanned using the 
readCelHeader function provided in the affxparser package. Look for the 
'datheader' entry.

James.