No problem,
By the way, you can't (or at least shouldn't) use return() outside of a
function -- that was the source of your old error message.
If you, for whatever reason, couldn't use unlist() you would write:
OurUnlist <- function(c, unique = F) {
if (!is.list(c)) return(c)
z <- NULL
for (i in seq_along(c)) {
z <- c(z,c[[i]])
}
if (unique) return(unique(z))
return(z)
}
or some such. Still, I suggest you stick with built in functions whenever
possible.
Michael Weylandt
PS -- Can you email me (off list) and let me know what this is for? We've
been asked this question a couple of times over the last few days and I'm
just wondering why it's a calculation of interest to so many.
On Thu, Aug 11, 2011 at 1:00 PM, Srinivas Iyyer
<srini_iyyer_...@yahoo.com>wrote:
> Thank you. that was very easy.
> -srini
>
> --- On *Thu, 8/11/11, R. Michael Weylandt <michael.weyla...@gmail.com>*wrote:
>
>
> From: R. Michael Weylandt <michael.weyla...@gmail.com>
> Subject: Re: [R] help with loops
> To: "Srinivas Iyyer" <srini_iyyer_...@yahoo.com>
> Cc: r-help@r-project.org
> Date: Thursday, August 11, 2011, 12:49 PM
>
>
> unlist()
>
> Michael Weylandt
>
> On Thu, Aug 11, 2011 at 12:46 PM, Srinivas Iyyer <
> srini_iyyer_...@yahoo.com <http://mc/compose?to=srini_iyyer_...@yahoo.com>
> > wrote:
>
> hi I need help with list object.
>
> I have a list object
>
> > a <- c('apple','orange','grape')
> > b <- c('car','truck','jeep')
> > c <- list(a,b)
> > names(c) <- c('fruit','vehicle')
> > c
> $fruit
> [1] "apple" "orange" "grape"
>
> $vehicle
> [1] "car" "truck" "jeep"
>
>
> I want to write all the elements of this list in one object 'z'.
>
> >z
> [1] "apple" "orange" "grape" "car" "truck" "jeep"
>
> How can I write the elements of c to z
> I tried using a for loop. Could any one help me please. thanks
>
>
> > z <- ''
> > for (i in 1:length(c)){
> + k <- c[[i]]
> + z <- c(z,k)
> + return(z)}
> Error: no function to return from, jumping to top level
> >
>
>
> Thank you.
> srini
>
> ______________________________________________
> R-help@r-project.org <http://mc/compose?to=R-help@r-project.org> mailing
> list
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>
>
>
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