[BioC] subsetting lumibatch object by probe ID
emanuele.marchi at imm.ox.ac.uk
Thu Dec 4 16:17:27 CET 2008
I have a list of illumina probe ID's (ILMN_#####) and I'd like to subset
the matrix of expression values (exprs(lumi.batch.object) by probe ID,
i.e. row names.
Is there an obvious (and quick) sub-setting method to do that?
If I use plotSampleRelation I can choose a selection of probes (selProbe
parameter) but I guess it has to be as numeric vector, am I correct?
In fact I tried to put the character vector containing probeID/row names
and it didn't work...
thank you and really sorry if the question is too basic for you...
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