[BioC] PCA plots and identifying outliers
guest at bioconductor.org
Fri Oct 5 17:35:04 CEST 2012
I'm using affycoretools() to generate some pca plots. I found that I have some outliers. I was wondering, how do I find out which particular sample (.CEL file) was the outlier?
I know which group it is from, but not the identity.
I've plotted pca plots with just using the plot() function as well, but I still do not know how to identify the particular sample that is the outlier.
Any ideas for both affycoretools() or the general plot() function will be appreciated!
-- output of sessionInfo():
No error, just question about how find out further details.
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