edgeR: Contrast selection
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Simon Anders ★ 3.7k
@simon-anders-3855
Last seen 3.7 years ago
Zentrum für Molekularbiologie, Universi…
Dear Mark I cannot figure out how to specify which conditions to contrast against each other in an edgeR exactTest. I do the following: > library( edgeR ) > counts <- matrix( rnbinom( 600, 5, .1 ), ncol=6 ) > conds <- c( "A", "A", "B", "B", "C", "C" ) > dgl <- DGEList( counts=counts, group=conds ) Warning message: In DGEList(counts = counts, group = conds) : Calculating library sizes from total number of reads for each library. > dgl <- estimateCommonDisp( dgl ) Now I have a DGEList with 6 samples in 3 conditions. If I want to contrast 'C' vs 'A', I assume I should do > res <- exactTest( dgl, c( "A", "C" ) ) However, I get this error here: Comparison of groups: C - A Error in Ops.factor(pair[1], group) : level sets of factors are different Have I misunderstood the syntax, or is this a bug? I've tried around a bit with passing a factor instead, even with all three levels, but this did not help. Thanks in advance for any help. Cheers Simon > sessionInfo() R version 2.11.0 Under development (unstable) (--) x86_64-unknown-linux-gnu locale: [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C [3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 [5] LC_MONETARY=C LC_MESSAGES=en_US.UTF-8 [7] LC_PAPER=en_US.UTF-8 LC_NAME=C [9] LC_ADDRESS=C LC_TELEPHONE=C [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] edgeR_1.5.3 loaded via a namespace (and not attached): [1] limma_3.3.1 +--- | Dr. Simon Anders, Dipl.-Phys. | European Molecular Biology Laboratory (EMBL), Heidelberg | office phone +49-6221-387-8632 | preferred (permanent) e-mail: sanders at fs.tum.de
edgeR edgeR • 1.8k views
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@sunny-srivastava-3793
Last seen 9.6 years ago
Dear Simon, The last time I used edgeR, it was only supported 2 groups comparisons. As you have three treatment groups, this may be a possible problem. It may be a bug, but it may be also related to the limitation of this package. Hope this helps! Mark, pls correct me if I am wrong. Thanks and Best Regards, S. On Wed, Dec 16, 2009 at 1:03 PM, Simon Anders <anders@embl.de> wrote: > Dear Mark > > I cannot figure out how to specify which conditions to contrast against > each other in an edgeR exactTest. > > I do the following: > > > library( edgeR ) > > counts <- matrix( rnbinom( 600, 5, .1 ), ncol=6 ) > > conds <- c( "A", "A", "B", "B", "C", "C" ) > > dgl <- DGEList( counts=counts, group=conds ) > Warning message: > In DGEList(counts = counts, group = conds) : > Calculating library sizes from total number of reads for each library. > > dgl <- estimateCommonDisp( dgl ) > > Now I have a DGEList with 6 samples in 3 conditions. If I want to contrast > 'C' vs 'A', I assume I should do > > > res <- exactTest( dgl, c( "A", "C" ) ) > > However, I get this error here: > > Comparison of groups: C - A > Error in Ops.factor(pair[1], group) : level sets of factors are different > > > Have I misunderstood the syntax, or is this a bug? I've tried around a bit > with passing a factor instead, even with all three levels, but this did not > help. > > Thanks in advance for any help. > > Cheers > Simon > > > > sessionInfo() > R version 2.11.0 Under development (unstable) (--) > x86_64-unknown-linux-gnu > > locale: > [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C > [3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 > [5] LC_MONETARY=C LC_MESSAGES=en_US.UTF-8 > [7] LC_PAPER=en_US.UTF-8 LC_NAME=C > [9] LC_ADDRESS=C LC_TELEPHONE=C > [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C > > attached base packages: > [1] stats graphics grDevices utils datasets methods base > > other attached packages: > [1] edgeR_1.5.3 > > loaded via a namespace (and not attached): > [1] limma_3.3.1 > > > > +--- > | Dr. Simon Anders, Dipl.-Phys. > | European Molecular Biology Laboratory (EMBL), Heidelberg > | office phone +49-6221-387-8632 > | preferred (permanent) e-mail: sanders@fs.tum.de > > _______________________________________________ > Bioconductor mailing list > Bioconductor@stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/bioconductor > Search the archives: > http://news.gmane.org/gmane.science.biology.informatics.conductor > [[alternative HTML version deleted]]
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Hi Simon, You could try Tom Hardcastle's baySeq package which allows more complex designs. There isn't an example of a three group design in the vignette, but there is one in the draft manuscript which we are about to send off. Perhaps Tom might email you a copy of this example. Cheers Krys Dr Krystyna A Kelly (Krys) Bioinformatics Group Leader Department of Plant Sciences University of Cambridge Downing Street Cambridge CB2 3EA United Kingdom Tel: +44 (0)1223 748 969 Fax: +44 (0)1223 333 953 -----Original Message----- From: bioconductor-bounces@stat.math.ethz.ch [mailto:bioconductor-bounces at stat.math.ethz.ch] On Behalf Of Sunny Srivastava Sent: 17 December 2009 23:59 To: Simon Anders Cc: BioC list Subject: Re: [BioC] edgeR: Contrast selection Dear Simon, The last time I used edgeR, it was only supported 2 groups comparisons. As you have three treatment groups, this may be a possible problem. It may be a bug, but it may be also related to the limitation of this package. Hope this helps! Mark, pls correct me if I am wrong. Thanks and Best Regards, S. On Wed, Dec 16, 2009 at 1:03 PM, Simon Anders <anders at="" embl.de=""> wrote: > Dear Mark > > I cannot figure out how to specify which conditions to contrast against > each other in an edgeR exactTest. > > I do the following: > > > library( edgeR ) > > counts <- matrix( rnbinom( 600, 5, .1 ), ncol=6 ) > > conds <- c( "A", "A", "B", "B", "C", "C" ) > > dgl <- DGEList( counts=counts, group=conds ) > Warning message: > In DGEList(counts = counts, group = conds) : > Calculating library sizes from total number of reads for each library. > > dgl <- estimateCommonDisp( dgl ) > > Now I have a DGEList with 6 samples in 3 conditions. If I want to contrast > 'C' vs 'A', I assume I should do > > > res <- exactTest( dgl, c( "A", "C" ) ) > > However, I get this error here: > > Comparison of groups: C - A > Error in Ops.factor(pair[1], group) : level sets of factors are different > > > Have I misunderstood the syntax, or is this a bug? I've tried around a bit > with passing a factor instead, even with all three levels, but this did not > help. > > Thanks in advance for any help. > > Cheers > Simon > > > > sessionInfo() > R version 2.11.0 Under development (unstable) (--) > x86_64-unknown-linux-gnu > > locale: > [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C > [3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 > [5] LC_MONETARY=C LC_MESSAGES=en_US.UTF-8 > [7] LC_PAPER=en_US.UTF-8 LC_NAME=C > [9] LC_ADDRESS=C LC_TELEPHONE=C > [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C > > attached base packages: > [1] stats graphics grDevices utils datasets methods base > > other attached packages: > [1] edgeR_1.5.3 > > loaded via a namespace (and not attached): > [1] limma_3.3.1 > > > > +--- > | Dr. Simon Anders, Dipl.-Phys. > | European Molecular Biology Laboratory (EMBL), Heidelberg > | office phone +49-6221-387-8632 > | preferred (permanent) e-mail: sanders at fs.tum.de > > _______________________________________________ > Bioconductor mailing list > Bioconductor at stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/bioconductor > Search the archives: > http://news.gmane.org/gmane.science.biology.informatics.conductor > [[alternative HTML version deleted]] _______________________________________________ Bioconductor mailing list Bioconductor at stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/bioconductor Search the archives: http://news.gmane.org/gmane.science.biology.informatics.conductor
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Hi Krys Kelly wrote: > You could try Tom Hardcastle's baySeq package which allows more complex > designs. There isn't an example of a three group design in the vignette, > but there is one in the draft manuscript which we are about to send off. > Perhaps Tom might email you a copy of this example. Actually, I don't have a more complex design. The main limitation of edgeR is that you cannot form complex contrasts such as an interaction vs the sum of two main effects, or the like. However, having more than two conditions should be possible, provided one always only contrasts one against the other. Actually, I already got a reply by Mark (which somehow did not make it on the list): he is travelling at the moment, but they will look into it very soon. Cheers Simon
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Naomi Altman ★ 6.0k
@naomi-altman-380
Last seen 2.9 years ago
United States
I just installed baySeq. Most of the documentation is there, but I cannot find the vignette. --Naomi At 04:38 AM 12/18/2009, Krys Kelly wrote: >Hi Simon, > >You could try Tom Hardcastle's baySeq package which allows more complex >designs. There isn't an example of a three group design in the vignette, >but there is one in the draft manuscript which we are about to send off. >Perhaps Tom might email you a copy of this example. > >Cheers > >Krys > > >Dr Krystyna A Kelly (Krys) >Bioinformatics Group Leader > >Department of Plant Sciences >University of Cambridge >Downing Street >Cambridge CB2 3EA >United Kingdom > >Tel: +44 (0)1223 748 969 >Fax: +44 (0)1223 333 953 > > > >-----Original Message----- >From: bioconductor-bounces at stat.math.ethz.ch >[mailto:bioconductor-bounces at stat.math.ethz.ch] On Behalf Of Sunny >Srivastava >Sent: 17 December 2009 23:59 >To: Simon Anders >Cc: BioC list >Subject: Re: [BioC] edgeR: Contrast selection > >Dear Simon, >The last time I used edgeR, it was only supported 2 groups comparisons. As >you have three treatment groups, this may be a possible problem. > >It may be a bug, but it may be also related to the limitation of this >package. > >Hope this helps! > >Mark, pls correct me if I am wrong. > >Thanks and Best Regards, >S. > >On Wed, Dec 16, 2009 at 1:03 PM, Simon Anders <anders at="" embl.de=""> wrote: > > > Dear Mark > > > > I cannot figure out how to specify which conditions to contrast against > > each other in an edgeR exactTest. > > > > I do the following: > > > > > library( edgeR ) > > > counts <- matrix( rnbinom( 600, 5, .1 ), ncol=6 ) > > > conds <- c( "A", "A", "B", "B", "C", "C" ) > > > dgl <- DGEList( counts=counts, group=conds ) > > Warning message: > > In DGEList(counts = counts, group = conds) : > > Calculating library sizes from total number of reads for each library. > > > dgl <- estimateCommonDisp( dgl ) > > > > Now I have a DGEList with 6 samples in 3 conditions. If I want to contrast > > 'C' vs 'A', I assume I should do > > > > > res <- exactTest( dgl, c( "A", "C" ) ) > > > > However, I get this error here: > > > > Comparison of groups: C - A > > Error in Ops.factor(pair[1], group) : level sets of factors are different > > > > > > Have I misunderstood the syntax, or is this a bug? I've tried around a bit > > with passing a factor instead, even with all three levels, but this did >not > > help. > > > > Thanks in advance for any help. > > > > Cheers > > Simon > > > > > > > sessionInfo() > > R version 2.11.0 Under development (unstable) (--) > > x86_64-unknown-linux-gnu > > > > locale: > > [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C > > [3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 > > [5] LC_MONETARY=C LC_MESSAGES=en_US.UTF-8 > > [7] LC_PAPER=en_US.UTF-8 LC_NAME=C > > [9] LC_ADDRESS=C LC_TELEPHONE=C > > [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C > > > > attached base packages: > > [1] stats graphics grDevices utils datasets methods base > > > > other attached packages: > > [1] edgeR_1.5.3 > > > > loaded via a namespace (and not attached): > > [1] limma_3.3.1 > > > > > > > > +--- > > | Dr. Simon Anders, Dipl.-Phys. > > | European Molecular Biology Laboratory (EMBL), Heidelberg > > | office phone +49-6221-387-8632 > > | preferred (permanent) e-mail: sanders at fs.tum.de > > > > _______________________________________________ > > Bioconductor mailing list > > Bioconductor at stat.math.ethz.ch > > https://stat.ethz.ch/mailman/listinfo/bioconductor > > Search the archives: > > http://news.gmane.org/gmane.science.biology.informatics.conductor > > > > [[alternative HTML version deleted]] > >_______________________________________________ >Bioconductor mailing list >Bioconductor at stat.math.ethz.ch >https://stat.ethz.ch/mailman/listinfo/bioconductor >Search the archives: >http://news.gmane.org/gmane.science.biology.informatics.conductor > >_______________________________________________ >Bioconductor mailing list >Bioconductor at stat.math.ethz.ch >https://stat.ethz.ch/mailman/listinfo/bioconductor >Search the archives: >http://news.gmane.org/gmane.science.biology.informatics.conductor Naomi S. Altman 814-865-3791 (voice) Associate Professor Dept. of Statistics 814-863-7114 (fax) Penn State University 814-865-1348 (Statistics) University Park, PA 16802-2111
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http://www.bioconductor.org/packages/release/bioc/vignettes/baySeq/ins t/doc/baySeq.pdf Best, Tom Naomi Altman wrote: > I just installed baySeq. Most of the documentation is there, but I > cannot find the vignette. > > --Naomi > > > At 04:38 AM 12/18/2009, Krys Kelly wrote: >> Hi Simon, >> >> You could try Tom Hardcastle's baySeq package which allows more complex >> designs. There isn't an example of a three group design in the >> vignette, >> but there is one in the draft manuscript which we are about to send off. >> Perhaps Tom might email you a copy of this example. >> >> Cheers >> >> Krys >> >> >> Dr Krystyna A Kelly (Krys) >> Bioinformatics Group Leader >> >> Department of Plant Sciences >> University of Cambridge >> Downing Street >> Cambridge CB2 3EA >> United Kingdom >> >> Tel: +44 (0)1223 748 969 >> Fax: +44 (0)1223 333 953 >> >> >> >> -----Original Message----- >> From: bioconductor-bounces at stat.math.ethz.ch >> [mailto:bioconductor-bounces at stat.math.ethz.ch] On Behalf Of Sunny >> Srivastava >> Sent: 17 December 2009 23:59 >> To: Simon Anders >> Cc: BioC list >> Subject: Re: [BioC] edgeR: Contrast selection >> >> Dear Simon, >> The last time I used edgeR, it was only supported 2 groups >> comparisons. As >> you have three treatment groups, this may be a possible problem. >> >> It may be a bug, but it may be also related to the limitation of this >> package. >> >> Hope this helps! >> >> Mark, pls correct me if I am wrong. >> >> Thanks and Best Regards, >> S. >> >> On Wed, Dec 16, 2009 at 1:03 PM, Simon Anders <anders at="" embl.de=""> wrote: >> >> > Dear Mark >> > >> > I cannot figure out how to specify which conditions to contrast >> against >> > each other in an edgeR exactTest. >> > >> > I do the following: >> > >> > > library( edgeR ) >> > > counts <- matrix( rnbinom( 600, 5, .1 ), ncol=6 ) >> > > conds <- c( "A", "A", "B", "B", "C", "C" ) >> > > dgl <- DGEList( counts=counts, group=conds ) >> > Warning message: >> > In DGEList(counts = counts, group = conds) : >> > Calculating library sizes from total number of reads for each >> library. >> > > dgl <- estimateCommonDisp( dgl ) >> > >> > Now I have a DGEList with 6 samples in 3 conditions. If I want to >> contrast >> > 'C' vs 'A', I assume I should do >> > >> > > res <- exactTest( dgl, c( "A", "C" ) ) >> > >> > However, I get this error here: >> > >> > Comparison of groups: C - A >> > Error in Ops.factor(pair[1], group) : level sets of factors are >> different >> > >> > >> > Have I misunderstood the syntax, or is this a bug? I've tried >> around a bit >> > with passing a factor instead, even with all three levels, but this >> did >> not >> > help. >> > >> > Thanks in advance for any help. >> > >> > Cheers >> > Simon >> > >> > >> > > sessionInfo() >> > R version 2.11.0 Under development (unstable) (--) >> > x86_64-unknown-linux-gnu >> > >> > locale: >> > [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C >> > [3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 >> > [5] LC_MONETARY=C LC_MESSAGES=en_US.UTF-8 >> > [7] LC_PAPER=en_US.UTF-8 LC_NAME=C >> > [9] LC_ADDRESS=C LC_TELEPHONE=C >> > [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C >> > >> > attached base packages: >> > [1] stats graphics grDevices utils datasets methods base >> > >> > other attached packages: >> > [1] edgeR_1.5.3 >> > >> > loaded via a namespace (and not attached): >> > [1] limma_3.3.1 >> > >> > >> > >> > +--- >> > | Dr. Simon Anders, Dipl.-Phys. >> > | European Molecular Biology Laboratory (EMBL), Heidelberg >> > | office phone +49-6221-387-8632 >> > | preferred (permanent) e-mail: sanders at fs.tum.de >> > >> > _______________________________________________ >> > Bioconductor mailing list >> > Bioconductor at stat.math.ethz.ch >> > https://stat.ethz.ch/mailman/listinfo/bioconductor >> > Search the archives: >> > http://news.gmane.org/gmane.science.biology.informatics.conductor >> > >> >> [[alternative HTML version deleted]] >> >> _______________________________________________ >> Bioconductor mailing list >> Bioconductor at stat.math.ethz.ch >> https://stat.ethz.ch/mailman/listinfo/bioconductor >> Search the archives: >> http://news.gmane.org/gmane.science.biology.informatics.conductor >> >> _______________________________________________ >> Bioconductor mailing list >> Bioconductor at stat.math.ethz.ch >> https://stat.ethz.ch/mailman/listinfo/bioconductor >> Search the archives: >> http://news.gmane.org/gmane.science.biology.informatics.conductor > > Naomi S. Altman 814-865-3791 (voice) > Associate Professor > Dept. of Statistics 814-863-7114 (fax) > Penn State University 814-865-1348 (Statistics) > University Park, PA 16802-2111 > -- Dr. Thomas J. Hardcastle Department of Plant Sciences University of Cambridge Downing Street Cambridge, CB2 3EA United Kingdom
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Thomas J Hardcastle wrote: > http://www.bioconductor.org/packages/release/bioc/vignettes/baySeq/i nst/doc/baySeq.pdf Hmm, but a little more interesting than that... The 'build report' for baySeq in the release branch http://bioconductor.org/checkResults/2.5/bioc-LATEST/ shows a warning on the windows build machine (liverpool) related to the vignette not being built, and in fact the 'zip' file used to install on Windows does not contain the pdf. This is likely an issue on our build machines here in Seattle, so we'll try and fix this over the next several days. Martin > > > Best, > > Tom > > Naomi Altman wrote: >> I just installed baySeq. Most of the documentation is there, but I >> cannot find the vignette. >> >> --Naomi >> >> >> At 04:38 AM 12/18/2009, Krys Kelly wrote: >>> Hi Simon, >>> >>> You could try Tom Hardcastle's baySeq package which allows more complex >>> designs. There isn't an example of a three group design in the >>> vignette, >>> but there is one in the draft manuscript which we are about to send off. >>> Perhaps Tom might email you a copy of this example. >>> >>> Cheers >>> >>> Krys >>> >>> >>> Dr Krystyna A Kelly (Krys) >>> Bioinformatics Group Leader >>> >>> Department of Plant Sciences >>> University of Cambridge >>> Downing Street >>> Cambridge CB2 3EA >>> United Kingdom >>> >>> Tel: +44 (0)1223 748 969 >>> Fax: +44 (0)1223 333 953 >>> >>> >>> >>> -----Original Message----- >>> From: bioconductor-bounces at stat.math.ethz.ch >>> [mailto:bioconductor-bounces at stat.math.ethz.ch] On Behalf Of Sunny >>> Srivastava >>> Sent: 17 December 2009 23:59 >>> To: Simon Anders >>> Cc: BioC list >>> Subject: Re: [BioC] edgeR: Contrast selection >>> >>> Dear Simon, >>> The last time I used edgeR, it was only supported 2 groups >>> comparisons. As >>> you have three treatment groups, this may be a possible problem. >>> >>> It may be a bug, but it may be also related to the limitation of this >>> package. >>> >>> Hope this helps! >>> >>> Mark, pls correct me if I am wrong. >>> >>> Thanks and Best Regards, >>> S. >>> >>> On Wed, Dec 16, 2009 at 1:03 PM, Simon Anders <anders at="" embl.de=""> wrote: >>> >>> > Dear Mark >>> > >>> > I cannot figure out how to specify which conditions to contrast >>> against >>> > each other in an edgeR exactTest. >>> > >>> > I do the following: >>> > >>> > > library( edgeR ) >>> > > counts <- matrix( rnbinom( 600, 5, .1 ), ncol=6 ) >>> > > conds <- c( "A", "A", "B", "B", "C", "C" ) >>> > > dgl <- DGEList( counts=counts, group=conds ) >>> > Warning message: >>> > In DGEList(counts = counts, group = conds) : >>> > Calculating library sizes from total number of reads for each >>> library. >>> > > dgl <- estimateCommonDisp( dgl ) >>> > >>> > Now I have a DGEList with 6 samples in 3 conditions. If I want to >>> contrast >>> > 'C' vs 'A', I assume I should do >>> > >>> > > res <- exactTest( dgl, c( "A", "C" ) ) >>> > >>> > However, I get this error here: >>> > >>> > Comparison of groups: C - A >>> > Error in Ops.factor(pair[1], group) : level sets of factors are >>> different >>> > >>> > >>> > Have I misunderstood the syntax, or is this a bug? I've tried >>> around a bit >>> > with passing a factor instead, even with all three levels, but this >>> did >>> not >>> > help. >>> > >>> > Thanks in advance for any help. >>> > >>> > Cheers >>> > Simon >>> > >>> > >>> > > sessionInfo() >>> > R version 2.11.0 Under development (unstable) (--) >>> > x86_64-unknown-linux-gnu >>> > >>> > locale: >>> > [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C >>> > [3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 >>> > [5] LC_MONETARY=C LC_MESSAGES=en_US.UTF-8 >>> > [7] LC_PAPER=en_US.UTF-8 LC_NAME=C >>> > [9] LC_ADDRESS=C LC_TELEPHONE=C >>> > [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C >>> > >>> > attached base packages: >>> > [1] stats graphics grDevices utils datasets methods base >>> > >>> > other attached packages: >>> > [1] edgeR_1.5.3 >>> > >>> > loaded via a namespace (and not attached): >>> > [1] limma_3.3.1 >>> > >>> > >>> > >>> > +--- >>> > | Dr. Simon Anders, Dipl.-Phys. >>> > | European Molecular Biology Laboratory (EMBL), Heidelberg >>> > | office phone +49-6221-387-8632 >>> > | preferred (permanent) e-mail: sanders at fs.tum.de >>> > >>> > _______________________________________________ >>> > Bioconductor mailing list >>> > Bioconductor at stat.math.ethz.ch >>> > https://stat.ethz.ch/mailman/listinfo/bioconductor >>> > Search the archives: >>> > http://news.gmane.org/gmane.science.biology.informatics.conductor >>> > >>> >>> [[alternative HTML version deleted]] >>> >>> _______________________________________________ >>> Bioconductor mailing list >>> Bioconductor at stat.math.ethz.ch >>> https://stat.ethz.ch/mailman/listinfo/bioconductor >>> Search the archives: >>> http://news.gmane.org/gmane.science.biology.informatics.conductor >>> >>> _______________________________________________ >>> Bioconductor mailing list >>> Bioconductor at stat.math.ethz.ch >>> https://stat.ethz.ch/mailman/listinfo/bioconductor >>> Search the archives: >>> http://news.gmane.org/gmane.science.biology.informatics.conductor >> >> Naomi S. Altman 814-865-3791 (voice) >> Associate Professor >> Dept. of Statistics 814-863-7114 (fax) >> Penn State University 814-865-1348 (Statistics) >> University Park, PA 16802-2111 >> > > -- Martin Morgan Computational Biology / Fred Hutchinson Cancer Research Center 1100 Fairview Ave. N. PO Box 19024 Seattle, WA 98109 Location: Arnold Building M1 B861 Phone: (206) 667-2793
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