R help - Aug 2005 - quotes

Hi:

I have been struggling with gsub to no avail and am seeking help from  
the list.

I want to make a vector of the string "one, two, three" and have  
tried to:

     - replace each comma by ","
     - add " at the beginning of the string
     - add " at the end of the string

to issue the command:

     col.names <- c("one", "two", "three")

for use in a data frame.

I have tried gsub to get that but am unable to get the double quote  
and when I try to escape it (\"), I also get the backslash.


Thanks for your help,
jpg

col.names <- strsplit("one, two, three", ", ")[[1]]

is an easy way to do this.  But you can do

paste('"', gsub(', ',  '","', "one,
two, three"), '"', sep="")

R accepts either single or double quotes and it can make life easier to 
use both.

On Fri, 12 Aug 2005, Jean-Pierre Gattuso wrote:
> Hi:
>
> I have been struggling with gsub to no avail and am seeking help from
> the list.
>
> I want to make a vector of the string "one, two, three" and have
> tried to:
>
>     - replace each comma by ","
>     - add " at the beginning of the string
>     - add " at the end of the string
>
> to issue the command:
>
>     col.names <- c("one", "two", "three")
>
> for use in a data frame.
>
> I have tried gsub to get that but am unable to get the double quote
> and when I try to escape it (\"), I also get the backslash.
>
>
> Thanks for your help,
> jpg
>
> ______________________________________________
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>
-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
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