[R] list of list

jim holtman jholtman at gmail.com
Mon Feb 16 18:28:09 CET 2015


Is this what you mean:

ASL <- list()
for (j in 1:5){
    RES <- list()
    for (i in 1:5) RES[[i]] <- i ^ j  # create list
    ASL[[j]] <- RES  # store 'list of list'
}


Jim Holtman
Data Munger Guru

What is the problem that you are trying to solve?
Tell me what you want to do, not how you want to do it.

On Mon, Feb 16, 2015 at 11:43 AM, Troels Ring <tring at gvdnet.dk> wrote:

> Dear friends - this is simple I know but I can figure it out without your
> help.
> I have for each of 2195 instances 10 variables measured at specific times
> from 6 to several hundred, so if I just take one of the instances, I can
> make a list of the 10 variables together with their variable times. But
> when I have 2195 such instances I cannot get it how to make a list of these
> individual lists
>
> As a toy example demonstrating mercilessly my problem, if ASL[j] is mean
> to take the list of here 5 entries made in RES[[i]] and I write this
> (ignoring the times) it certainly doesn't work
> ASL <- list()
> RES <- list()
> for (j in 1:5){
> for (i in 1:5)
> ASL[[j]] <-
>  RES[[i]] <- i^j }
>
> All best wishes
> Troels Ring
> Aalborg, Denmark
>
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