Re: [R] Splitting a set of vectors in a list

From: John Kane <jrkrideau_at_yahoo.ca>
Date: Thu, 13 Mar 2008 14:31:59 -0400 (EDT)


Ideally something like this:



t(cbind( c("cat" , "peach" , NA, NA), bbb <- c("dog" , "apple" ,"iron", NA),
ccb <- c("rabbit" ,"orange" ,"zinc" , "silk" )))

Thanks

> 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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> http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained,
> reproducible code.
>

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