Maybe
lapply(l,function(x){x[1,1]})
or
unlist(lapply(l,function(x){x[1,1]}))
does what you want?
Benno
Am 17.Nov.2010 um 15:01 schrieb [email protected]:
> m <- matrix(1:9, nrow=3, dimnames=list(LETTERS[1:3], letters[1:3]))
> l <- list(m1=m, m2=m*2, m3=m*3)
> l[[3]] # works
> l[[3]][1:2, ] # works
> l[[1:3]][1, 1] # does not work
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