[BioC] Order of probesets in an exprSet
Rafael A. Irizarry
ririzarr at jhsph.edu
Mon Nov 7 19:29:18 CET 2005
fortuitous. look at indexProbes. we use whatever order ls
On Mon, 7 Nov 2005, Jamain, Adrien J wrote:
> Dear BioC people,
> I have a little technical question about how the order of the probesets
> in an exprSet is defined.
> Is this order given by the order of the probesets in the corresponding
> cdf environment (e.g. ls(mouse4302cdf))?
> Or is it alphabetical?
> Or is it "unconstrained"?
> In the examples I've looked at both the order of the probesets in the
> cdf environment and the exprSets are the same (and alphabetical).
> But is it a characteristic which is desired by development or is it just
> Thank you in advance for your insight...
> Adrien Jamain
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