[R] Combining the components of a character vector

Stephen C. Upton upton at mitre.org
Thu Apr 3 15:25:38 CEST 2003


John,

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

HTH
steve

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"
>
> 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/
> --------------------------------------------------------------------
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo/r-help



More information about the R-help mailing list