[R] switching off commands within character vector
murdoch.duncan at gmail.com
Mon Sep 19 13:37:32 CEST 2011
On 11-09-19 7:30 AM, Marion Wenty wrote:
> could someone help me with this problem?:
> I would like to create a latex-script inside of a character vector in order
> to being able to compilate it within latex in the end.
> if i try the following commands:
> l1<- "Hello world"
> latexscript<- paste("\c",l1,"\c")
> ... I get an error message. I think the problem is that r sees \c as a
> How can I get
> "\c Hello world \c"
> as a result without getting the error message?
Here's the long answer:
R uses \ as an "escape character", which is different from the way LaTeX
uses it. The string "\n" contains a single character (a newline
character. When you say "\c", the parser thinks you are asking for a
single character which is written as \c, but there isn't one, so you get
the error message.
To put the characters \c into a string, you need to escape the
backslash, i.e. use "\\c". That's a two character string. It will
print as "\\c" using print(), but if you use cat() you will see the
actual characters \c.
The short answer is:
latexscript <- paste("\\c", l1, "\\c")
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