[BioC] how to remove probeset

[James W. MacDonald]

This question isn't well specified. What exactly do you mean by 
'annotation'? You don't say what array you are using either.

In future you will be much better served by making your question as 
specific as possible. Otherwise you are expecting people to infer what 
you want, and you are less likely to get a response, let alone a correct 
response.

If I take a guess and assume you mean something like annotation == 'has 
a Gene ID', then it is pretty simple.

library(genefilter)
subeset <- featureFilter(eset, require.entrez = TRUE, remove.dupEntrez = 
FALSE)


Best,

Jim



On 6/26/2014 7:46 PM, Quan [guest] wrote:
> Hi,
>
> I want to remove the probeset which do not have annotation in feature before do the limma analysis.
>
> could anyone give suggestion on this problem using eset ?
>
> thank you
> Quan
>
>   -- output of sessionInfo():
>
> hi
>
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-- 
James W. MacDonald, M.S.
Biostatistician
University of Washington
Environmental and Occupational Health Sciences
4225 Roosevelt Way NE, # 100
Seattle WA 98105-6099