[R] Combining the components of a character vector

Adaikalavan Ramasamy gisar at nus.edu.sg
Fri Apr 4 05:58:03 CEST 2003


Yes there is. 

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



-----Original Message-----
From: John Miyamoto [mailto:jmiyamot at u.washington.edu] 
Sent: Thursday, April 03, 2003 7:54 AM
To: R discussion group
Subject: [R] Combining the components of a character vector

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"

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

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