edgeR: estimateGLMTrendDisp or estimateGLMCommonDisp
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KJ Lim ▴ 420
@kj-lim-5288
Last seen 4.3 years ago
Finland
Dear edgeR community, Good day. Please forgive me if I ask a stupid question. May I ask, using trended dispersion to estimate genewise (tagwise) dispersion for multi factors experiment design is better than using common dispersion? Thanks for your time and advice. Best regards, KJ Lim [[alternative HTML version deleted]]
edgeR edgeR • 2.0k views
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@gordon-smyth
Last seen 2 hours ago
WEHI, Melbourne, Australia
Dear KJ Lim, It may depend on the specific data, but I think that y <- estimateGLMCommonDisp(y,design) y <- estimateGLMTagwiseDisp(y,design,trend=FALSE) is probably sufficient for SAGE data, whereas y <- estimateGLMCommonDisp(y,design) y <- estimateGLMTrendedDisp(y,design) y <- estimateGLMTagwiseDisp(y,design,trend=TRUE) is advisable for RNA-seq data. Best wishes Gordon > Date: Wed, 23 Jan 2013 14:01:35 +0200 > From: KJ Lim <jinkeanlim at="" gmail.com=""> > To: Bioconductor mailing list <bioconductor at="" r-project.org=""> > Subject: [BioC] edgeR: estimateGLMTrendDisp or estimateGLMCommonDisp > > Dear edgeR community, > > Good day. > > Please forgive me if I ask a stupid question. > > May I ask, using trended dispersion to estimate genewise (tagwise) > dispersion for multi factors experiment design is better than using common > dispersion? > > Thanks for your time and advice. > > Best regards, > KJ Lim > ______________________________________________________________________ The information in this email is confidential and intend...{{dropped:4}}
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Dear Prof Gordon, Thanks for your suggestion. Have a nice day. Best regards, KJ Lim On 25 January 2013 03:21, Gordon K Smyth <smyth@wehi.edu.au> wrote: > Dear KJ Lim, > > It may depend on the specific data, but I think that > > y <- estimateGLMCommonDisp(y,**design) > y <- estimateGLMTagwiseDisp(y,**design,trend=FALSE) > > is probably sufficient for SAGE data, whereas > > y <- estimateGLMCommonDisp(y,**design) > y <- estimateGLMTrendedDisp(y,**design) > y <- estimateGLMTagwiseDisp(y,**design,trend=TRUE) > > is advisable for RNA-seq data. > > Best wishes > Gordon > > > Date: Wed, 23 Jan 2013 14:01:35 +0200 >> From: KJ Lim <jinkeanlim@gmail.com> >> To: Bioconductor mailing list <bioconductor@r-project.org> >> Subject: [BioC] edgeR: estimateGLMTrendDisp or estimateGLMCommonDisp >> >> Dear edgeR community, >> >> Good day. >> >> Please forgive me if I ask a stupid question. >> >> May I ask, using trended dispersion to estimate genewise (tagwise) >> dispersion for multi factors experiment design is better than using common >> dispersion? >> >> Thanks for your time and advice. >> >> Best regards, >> KJ Lim >> >> > ______________________________**______________________________**____ ______ > The information in this email is confidential and inte...{{dropped:10}}
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