[R] Efficient manipulation with list object

[Eric Berger]

Try this. Suppose your list of matrices is in the list locL.

nc <- 3

locL2 <- list()
for ( i in 1:length(locL )
  locL2[[i]] <- as.numeric(t(locL[[i]]))

bigMat <- matrix(unlist(locL3), ncol=nc, byrow=TRUE)

HTH,
Eric


On Sun, Jun 10, 2018 at 6:33 PM, Christofer Bogaso <
bogaso.christofer using gmail.com> wrote:

> Hi,
>
> I have a list of length 10,000, and each element of that list is a matrix
> with 3 columns and 2,000 rows.
>
> Now when I tried to make a Matrix object with that list using
> Reduce('rbind', list), my code is taking a considerable amount of time.
>
> Is there any way to implement same above task in more efficient way?
>
> Thanks,
>
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>
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