[BioC] Microarray data with outliers

[Sean Davis]

JUAN MIGUEL MARIN DIAZARAQUE wrote:
> Dear members
> I am trying to check a procedure to identify outliers and natural 
> clusters in microarrays. I have used standard yeast data from 
> Saccharomyces, but they do not have truly outliers.
> Can anyone indicate me where can I find a database in R or BioConductor 
> which contains outliers?

I'm not sure what you mean by outliers, but there are currently >173,000
arrays of data in NCBI GEO (http://www.ncbi.nih.gov/geo).  You can use
the GEOquery package to get these data into Bioconductor.  Also, you
might want to look at the copa package, as it is specifically designed
for looking for outliers in expression data.

Sean