one problem

Hello,
You need to include cc: to list in your replies.
Does this work for you?

dat1<-list()
for(i in 1:100){
?dat1[[i]]<-list()
?seed<-.Random.seed
?dat1[[i]]<-matrix(sample(c(0.23,0.56,0.45,0.85,0.7),2500,replace=TRUE),ncol=50)
?}
?dat1[[1]][1]
#[1] 0.56
?dat1[[2]][1]
#[1] 0.85
?dat1[[3]][1]
#[1] 0.23

A.K.