[BioC] FW: limma for 2 color data

Sean Davis sdavis2 at mail.nih.gov
Tue Apr 15 14:12:00 CEST 2008


On Tue, Apr 15, 2008 at 8:03 AM, Afsaneh <s.maleki-dizaji at dcs.shef.ac.uk> wrote:
> Dear Sean,
>  Thanks for reply but when I try,
>  > topTable(MA,sort.by='M')
>
> Error in dim(data) <- dim : attempt to set an attribute on NULL

topTable() will not work on an MAList.

>  I get error, so how can I get top 10 expressed genes.

You can take the ratio of red/green (or green/red) and order those
ratios from greatest to least.

Sean



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