I have a list of length 130,000 where each element is a character vector of length 110. I would like to convert this list to a matrix with dimension 1,430,000*10. How can I do it more efficiently?\ My code is :

output=NULL

for(i in 1:length(z)) {

output=rbind(output,

matrix(z[[i]],ncol=10,byrow=TRUE))

}