R help - Aug 2011 - help with loops

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

unlist()

Michael Weylandt

On Thu, Aug 11, 2011 at 12:46 PM, Srinivas Iyyer
<srini_iyyer_bio@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
>
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