Hello dear List, if I do an analysis with A and B, and I compare B to A, would I have the same results as if I did an analysis with A, B, C, and compared B to A ? I guess dispersion changes so results change slithly ? thanks, anna -- output of sessionInfo(): R version 2.15.1 (2012-06-22) Platform: i386-pc-mingw32/i386 (32-bit) locale: [1] LC_COLLATE=French_France.1252 LC_CTYPE=French_France.1252 [3] LC_MONETARY=French_France.1252 LC_NUMERIC=C [5] LC_TIME=French_France.1252 attached base packages: [1] splines stats graphics grDevices utils datasets methods [8] base other attached packages: [1] edgeR_3.0.0 limma_3.14.1 -- Sent via the guest posting facility at bioconductor.org.

Yes. Gordon > Date: Sun, 28 Oct 2012 05:16:16 -0700 (PDT) > From: "anna [guest]" <guest at="" bioconductor.org=""> > To: bioconductor at r-project.org, m.nadira at yahoo.fr > Subject: [BioC] EdgeR: dispersion and number of samples > > > Hello dear List, > if I do an analysis with A and B, and I compare B to A, > would I have the same results as if I did an analysis with A, B, C, and compared B to A ? > I guess dispersion changes so results change slithly ? > thanks, > anna > > -- output of sessionInfo(): > > R version 2.15.1 (2012-06-22) > Platform: i386-pc-mingw32/i386 (32-bit) > > locale: > [1] LC_COLLATE=French_France.1252 LC_CTYPE=French_France.1252 > [3] LC_MONETARY=French_France.1252 LC_NUMERIC=C > [5] LC_TIME=French_France.1252 > > attached base packages: > [1] splines stats graphics grDevices utils datasets methods > [8] base > > other attached packages: > [1] edgeR_3.0.0 limma_3.14.1 > ______________________________________________________________________ The information in this email is confidential and intend...{{dropped:4}}