[R] sort a list?
iverson at biostat.wisc.edu
Tue Oct 7 19:00:17 CEST 2008
Since objects of class "list" in R can be made up of heterogeneous
objects, sorting them does not make much sense. For example, does "A",
come before or after 1000, does a linear model summary come before or
If your data are all numeric, store them as a numeric vector, where sort
works. Vectors can be named in R, as in your example.
Also, 'order' does something different than 'sort'.
try the following:
x <- c(a = 1, b = 4, c = 2)
Hope that helps,
rkevinburton at charter.net wrote:
> I am trying to sort a list and the data is obiously not in the right format. I am trying:
> x <- list()
> x[["A"]] <- 1
> x[["B"]] <- 2
> But am getting:
> Error in order(x) : unimplemented type 'list' in 'orderVector1'
> How should I change the list so that it can be sorted? What kinds of objects (classes of objects) can be sorted?
> Thank you.
> R-help at r-project.org mailing list
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
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