[R] Splitting a set of vectors in a list
Erik Iverson
iverson at biostat.wisc.edu
Thu Mar 13 19:25:41 CET 2008
What would you want your output matrix to look like given mylist?
John Kane wrote:
> I have a set of character vectors of uneven length
> that I have stored in a list. I can easily enough get
> any column of them using lapply but what I want is to
> be able to create a matrix of them. Other than some
> kind of brute force looping approach I have drawn a
> blank.
>
> Would somebody please suggest something? Thanks
>
> Example.
>
> mylist <- list(aa=c("cat","peach" ), bb=c("dog",
> "apple", "iron"),
> cc = c("rabbit", "orange", "zinc", "silk"))
> myfun <- function(dff) dff[1]
> vect1 <- unlist(lapply(mylist, myfun))
>
>
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