[BioC] subset MarrayList

[D]

Hi there,

I'm trying to subset an Marraylist in limma to remove low intensity values
before fitting the linear model.  Forgive me if I'm missing something obvious,
I'm a novice at R.  Here's what I'm doing:

A.filter<-MA$A<10
MA.filterd<-MA[A.filter,]

But I get:

Error in '[.MAList'(MA,A.filter, ) : (subscript) logical subscript too long

It seems to be similar to what's shown in the user guide under the Weaver data:

isGene <- MA$genes$Status == "Riken"
fit <- lmFit(MA[isGene, ], design)

Any help is appreciated

D