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Summing up prob level

Hi

I have normalized a microarray data and matched the prob identifiers to gene symbol but now for some genes I have several probes. For example for gene A I have several matched probes. So I have repetition for gene A. How I can take mean over the expression of repeated genes please and having an unique value?

This is my expression matrix

> head(array[,1:10,1:5])
               GSM482796 GSM482797 GSM482798 GSM482799
1         OR2T6    0.0171   -0.1100   -0.0394   -0.0141
2          EBF1    0.1890    0.0222    0.0832    0.0459
3 DKFZp686D0972    1.9400    0.2530    0.3770    0.8310
4        ATP8B4   -0.1490    0.0690   -0.0637   -0.0527
5      NOTCH2NL    0.1540   -0.3880    0.2160   -0.0812
6        SPIRE1    0.2920    0.1690    0.5500    0.1430
r microarray gene
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written by zizigolu zizigolu

1 answer 

> limma::avereps(array,ID=rownames(array))
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written by zizigolu zizigolu

@Kevin you thought me limma::avereps function in my previous query if not I was wandering in google without getting the answer

Thank you

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written by zizigolu zizigolu

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