DESeq multi-factor export results
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@ingrid-lindquist-5181
Last seen 10.1 years ago
Hello Simon, I am working with a multi-factor experimental design within DESeq and am confused as to how to (when to) export my results. I am wondering at what point can i write.table of my results to include both foldchange and padj values for each gene. Thanks in advance for your help! Ingrid
DESeq DESeq • 1.2k views
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Simon Anders ★ 3.8k
@simon-anders-3855
Last seen 4.2 years ago
Zentrum für Molekularbiologie, Universi…
Dear Ingrid On 03/21/2012 03:18 PM, Ingrid Lindquist wrote: > I am working with a multi-factor experimental design within DESeq and am > confused as to how to (when to) export my results. I am wondering at > what point can i write.table of my results to include both foldchange > and padj values for each gene. Please post your workflow with the commands you use so that I can indicate where the results become available. Simon
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Hi Simon, See below. If I'm not mistaken the padjGLM file has the adjusted pvals in the order that is in fit1, so I've been manually combining them. Let me know though if this is not the correct assumption.. Ingrid counts <- read.table ("pathtofile", header=TRUE, row.names=1) icv_c_ctrl_Design<- data.frame(row.names=colnames(counts), condition= c("c", "c", "c", "c", "c", "ctrl", "ctrl", "ctrl", "ctrl"), libType= c("DSN-SS", "DSN-SS", "DSN", "DSN-SS", "DSN", "DSN", "DSN-SS", "DSN", "DSN-SS")) library(DESeq) cdsFull <- newCountDataSet (counts, icv_c_ctrl_Design) cdsFull <-estimateSizeFactors(cdsFull) cdsFull <-estimateDispersions(cdsFull) fit1 <-fitNbinomGLMs(cdsFull, count ~ libType + condition) fit0 <-fitNbinomGLMs(cdsFull, count ~ libType) pvalsGLM <-nbinomGLMTest(fit1, fit0) padjGLM <-p.adjust(pvalsGLM, method = "BH") write.table(fit1, file="fit_c_ctrl") write.table(padjGLM, file="padjGLM_c_ctrl") On 3/21/2012 9:03 AM, Simon Anders wrote: > Dear Ingrid > > On 03/21/2012 03:18 PM, Ingrid Lindquist wrote: >> I am working with a multi-factor experimental design within DESeq and am >> confused as to how to (when to) export my results. I am wondering at >> what point can i write.table of my results to include both foldchange >> and padj values for each gene. > > Please post your workflow with the commands you use so that I can > indicate where the results become available. > > Simon > > _______________________________________________ > Bioconductor mailing list > Bioconductor at r-project.org > https://stat.ethz.ch/mailman/listinfo/bioconductor > Search the archives: > http://news.gmane.org/gmane.science.biology.informatics.conductor -- Ingrid Lindquist National Center for Genome Resources 2935 Rodeo Park Drive East Santa Fe, NM 87505 (505) 995-4426 iel at ncgr.org
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Hi Ingrid On 03/21/2012 04:08 PM, Ingrid Lindquist wrote: > See below. If I'm not mistaken the padjGLM file has the adjusted pvals > in the order that is in fit1, so I've been manually combining them. Let > me know though if this is not the correct assumption.. Yes, this is correct. You can also combine the results into a data frame: > write.table(fit1, file="fit_c_ctrl") > write.table(padjGLM, file="padjGLM_c_ctrl") becomes write.table( data.frame( geneID = row.names(counts(cds)), pval = pvalsGLM, padj = padjGLM, fit1 ), file = "result.txt" ) Simon
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