Using proportions...
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@jim-silverton-4831
Last seen 10.3 years ago
Hello, Just wanted to find out why in a RNA-seq with treatment and control, no one does the two sample proportion comparison for two features. The total reads are large so it should work asymptotically. -- Thanks, Jim. [[alternative HTML version deleted]]
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@wolfgang-huber-3550
Last seen 4 months ago
EMBL European Molecular Biology Laborat…
On 11/17/11 4:58 AM, Jim Silverton wrote: > Hello, > Just wanted to find out why in a RNA-seq with treatment and control, no > one does the two sample proportion comparison for two features. The total > reads are large so it should work asymptotically. > Dear Jim lots of people do, but generally the answer that you get is not what one is looking for, because such an analysis tests against (and too frequenly rejects) an uninteresting null hypothesis. Have, for instance, a look at http://genomebiology.com/2010/11/10/R106 . Best wishes Wolfgang Wolfgang Huber EMBL http://www.embl.de/research/units/genome_biology/huber
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There are of course several other papers on this topic authored by people on this list and by contributors to Bioconductor, e.g. a particularly placative one: Nat Biotechnol. 2011 Jul 11;29(7):572-3. doi: 10.1038/nbt.1910. Sequencing technology does not eliminate biological variability. Hansen KD, Wu Z, Irizarry RA, Leek JT. Best wishes Wolfgang On 11/17/11 3:45 PM, Wolfgang Huber wrote: > On 11/17/11 4:58 AM, Jim Silverton wrote: >> Hello, >> Just wanted to find out why in a RNA-seq with treatment and control, no >> one does the two sample proportion comparison for two features. The total >> reads are large so it should work asymptotically. >> > > Dear Jim > > lots of people do, but generally the answer that you get is not what one > is looking for, because such an analysis tests against (and too > frequenly rejects) an uninteresting null hypothesis. Have, for instance, > a look at http://genomebiology.com/2010/11/10/R106 . > > Best wishes > Wolfgang > > > > Wolfgang Huber > EMBL > http://www.embl.de/research/units/genome_biology/huber > > _______________________________________________ > 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 -- Wolfgang Huber EMBL http://www.embl.de/research/units/genome_biology/huber
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