Entering edit mode
4.5 years ago
zizigolu
★
4.3k
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
That is correct.
@Kevin you thought me
limma::avereps
function in my previous query if not I was wandering in google without getting the answerThank you
No problem