Hi,

if your are working with affymetrix arrays, you might also consider a custom
CDF.
Custom CDFs just represent an alternative to the affymetrix cdf, more
up-to-date and the probe mapping is based on e.g. refseq or ensemble IDs.

As far as I know these CDFs do not contain double entries.

best,
Tefina

	[[alternative HTML version deleted]]

