[BioC] Agilent G4112A Arrays

[Chuming Chen]

Dear All,

I am trying to find out the differentially expressed genes from some 
Agilent Human Whole Genome (G4112A) Arrays data.

I have tried LIMMA package, but LIMMA gave the error message "no 
residual degrees of freedom in linear model fits" and stopped. My guess 
is that my data has no replicates in the experiment.

Is there any other packages I can use to find differentially expressed 
genes which does not require replicates in the experiment?

Thanks for your help.

Chuming