is.na(exprs(yourMethyLumiM)[ which(detection(yourMethyLumiM)>0.01,
arr.ind=T) ]) = TRUE

assuming you use a 0.01 cutoff, that is.



On Wed, Jun 22, 2011 at 4:13 AM, khadeeja ismail <hajjja@yahoo.com> wrote:

> Hi Everyone,
>
> I'm new to Bioconductor and also microarrays. Currently I'm working on
> Illumina Human Methylation 450k data. I have done the color adjustments and
> ssn normalization. Now I need to remove the probes failing a detection p
> value cut-off. Would be great if someone could tell me the best way to do
> this.
>
> Thanks,
> Hajja
>
>
>
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>
>
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>


-- 
If people do not believe that mathematics is simple, it is only because they
do not realize how complicated life is.
John von Neumann<http://www-groups.dcs.st-and.ac.uk/~history/Biographies/Von_Neumann.html>

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