[R] Combining the components of a character vector

[Achim Zeileis]

On Thursday 03 April 2003 01:54, John Miyamoto wrote:

> Dear Help,
>    Suppose I have a character vector.
>
> x <- c("Bob", "loves", "Sally")
>
> I want to combine it into a single string:  "Bob loves Sally" .
> paste(x) yields:
> paste(x)
> [1] "Bob"   "loves" "Sally"

R> x <- c("Bob", "loves", "Sally")
R> paste(x, collapse = " ")
[1] "Bob loves Sally"

For further info a look at help(paste) might help
Z

> The following function combines the character vector into a string
> in the way that I want, but it seems somewhat inelegant.
>
> paste.vector <- function(x, ...) {
> 	output <- NULL
> 	for (i in 1:length(x)) output <- paste(output, x[i], ...)
> 	output	} #end of function definition
>
> paste.vector(x)
> [1] " Bob loves Sally"
>
> Is there a more natural (no loop) way to do this in R?
>
> John Miyamoto
>
> --------------------------------------------------------------------
> John Miyamoto, Dept. of Psychology, Box 351525
> University of Washington, Seattle, WA 98195-1525
> Phone 206-543-0805, Fax 206-685-3157, Email
> jmiyamot at u.washington.edu Homepage
> http://faculty.washington.edu/jmiyamot/
> --------------------------------------------------------------------
>
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