[BioC] normalization method & dispersion estimation RNA-seq data
Ryan C. Thompson
rct at thompsonclan.org
Mon Nov 26 22:37:16 CET 2012
Anyway, to address the question of using DSS to estimate dispersions and
then plugging those dispersions into an edgeR DGEList object, this
should be perfectly possible, with one LARGE caveat: DSS only supports
the simplest possible experimental design: two-classes, unpaired
samples. If your experiment fits this design, you can use DSS to
estimate dispersions and copy those dispersions into a DGEList object
and use edgeR's significance tests. However, doing so would not
necessarily be useful because, as discussed, the DSS paper shows that
doing so would give basically the same results as using the waldTest
function of DSS.
On 11/26/2012 09:30 AM, aec [guest] wrote:
> Is it possible to adopt the CQN normalization method (Hansen, 2012) as an option of the edgeR function 'calcNormFactors' ? And the new shrinkage estimator for dispersion (Wu, 2012) that seems to be better than the currently used by edgeR ?
>
> thanks,
>
>
> -- output of sessionInfo():
>
> any
>
> --
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