[R] list of list

Jeff Newmiller jdnewmil at dcn.davis.CA.us
Mon Feb 16 18:46:02 CET 2015


You have two named objects when your goal is to have one that contains five others.

ASL <- vector( "list", 5 )
for (j in 1:5){
  ASL[[j]] <- vector( "list", 5 )
  for (i in 1:5) {
    ASL[[j]][[i]] <- i^j 
  }
}

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Sent from my phone. Please excuse my brevity.

On February 16, 2015 8:43:51 AM PST, 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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>and provide commented, minimal, self-contained, reproducible code.



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