[BioC] differing versions of limma

Gordon K Smyth smyth at wehi.EDU.AU
Wed Mar 2 00:49:55 CET 2005

> Date: Mon, 28 Feb 2005 12:08:31 +0000
> From: Adaikalavan Ramasamy <ramasamy at cancer.org.uk>
> Subject: [BioC] differing versions of limma
> To: BioConductor mailing list <bioconductor at stat.math.ethz.ch>
> * From the authors webpage (http://bioinf.wehi.edu.au/limma/), the limma
> package version is 1.8.22 dated 24 February 2005.
> * From the BioConductor (Release 1.5) webpage
> http://www.bioconductor.org/repository/release1.5/package/html/limma.html
> the limma package version is 1.8.6 dated 27 October 2004.
> Is the above discrepancy of nearly 4 months or 15 minor releases
> intentional ?

You might read Section 2 of the Limma User's Guide "Installing Limma" where this dicrepancy is

To add a few more general comments, Limma works on an "always in release" programming model.  It
doesn't usually have a separate "developmental version", rather I only post versions of the
package which I think are completely working and dcoumented versions.  Bioconductor proper is
released only once every 6 months (unless you're a alpha/beta tester for R as well as
Bioconductor), but you are permitted, in fact strongly encouaged, to update limma more often.  I
post limma to the http://bioinf.wehi.edu/limma site and also to CRAN so as to make this more
frequent update possible.


> I noticed considerable change in speed of lmFit() speed as
> documented in the changelog for version 1.8.15.
> Thank you.
> Regards, Adai

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