[BioC] AveExp" column has dissappeared from limma topTable

Gordon K Smyth smyth at wehi.EDU.AU
Tue Apr 3 23:56:00 CEST 2007


> Date: Mon, 2 Apr 2007 14:23:45 +0100
> From: "Mikhail, Amy" <a.mikhail at abdn.ac.uk>
> Subject: Re: [BioC] "AveExp" column has dissappeared from limma
> 	topTable
> To: "Marcus Davy" <mdavy at hortresearch.co.nz>
> Cc: bioconductor at stat.math.ethz.ch
>
> Hi Marcus,
>
> "Mosquito" is a subset of my original exprSet (with some probesets taken
> out).  So it is just a matrix

There is no reason why a subset of an exprSet should not be an exprSet also.  Just subset the
object without using exprs().

Best wishes
Gordon

> and now that I look, there is no "Amean"
> element in my fit object.  I didn't know that Amean would not be
> derrived for matrices, thanks for pointing that out.
>
> Many thanks,
> Amy



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