[BioC] No replicates and differential analysis !!

[Nicolas Servant]

Hello,

Does anybody know a R package or function to compare expression level 
(affy data) of two groups with no replicates in each group ? In fact, 
just compare one array to an other.
The purpose is to find differentially expressed genes.
We cannot used statistical test (not enougth replicates), but we can 
used graphical approach based on scatter plot, and outliers detection 
approach.

Thanks for your help,
Regards

Nicolas.

-- 
Nicolas Servant
Equipe Bioinformatique
Institut Curie 
26, rue d'Ulm - 75248 Paris Cedex 05 - FRANCE

Email: Nicolas.Servant at curie.fr
Tel: 01 44 32 42 75