There was discussion about language desing here recently -- other languages are aparently badly designed. They:
1. Allow you to sort lists, which is bad idea. 2. Probably use name like 'sort.list' for that purpose, which is even worse idea. 3. Do not respond 'error: have you called sort on a list' when you call sort.list on a list, which is completely crazy. Stop using other languages. Learn the rules, there are plenty. \misiek > THank you. I just didn't know the "rules". In other languages it is possible > to pass in a 'compare' function so the sort is defined by the function. I > guess I was a) > wondering why it failed, and b) if there was a similar work > around to sort generic lists. Also I was specifically addressing the list > that I gave in the example not a > generic list. I think I have a solution. > Thank you. Kevin ---- Erik Iverson <[EMAIL PROTECTED]> <[EMAIL PROTECTED]> wrote: > 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 > after pi? > > 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) > sort(x) > order(x) > > Hope that helps, > Erik > > > > [EMAIL PROTECTED] 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 > > > > order(x) > > > > 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. > > > > Kevin > > > > ______________________________________________ > > R-help@r-project.org mailing list > > https://stat.ethz.ch/mailman/listinfo/r-help > > PLEASE do read the posting guide > > http://www.R-project.org/posting-guide.html > > <http://www.r-project.org/posting-guide.html> > > and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
