[BioC] how to convert ExpressionSet to AffyBatch

[James W. MacDonald]

library(limma)
?plotMA

Best,

Jim



On Friday, September 06, 2013 4:35:01 PM, Wang Peter wrote:
> the MAplot function only accept  AffyBatch object
> but i have a data in ExpressionSet  variable
>
>
> how to convert ExpressionSet to AffyBatch
>
> thank you very much
>
>
>

--
James W. MacDonald, M.S.
Biostatistician
University of Washington
Environmental and Occupational Health Sciences
4225 Roosevelt Way NE, # 100
Seattle WA 98105-6099