Re: [R] Backslash in paste() function

From: Uwe Ligges <ligges_at_statistik.tu-dortmund.de>
Date: Wed, 16 Jun 2010 13:57:48 +0200

Just double all the backslashes and you are fine. In order to see the outcome, use cat() (not print).

Uwe Ligges

On 16.06.2010 09:49, Stefan Petersson wrote:
>
> Hi,
>
> I'm trying to build a vector of latex commands. However, I need the command strings to begin with a backslash "\". I have:
>
> test<- c('foo','bar')
>
> and I need to rebuild the array, encapsulating the text items with latex stuff, like this:
>
> paste("\parbox[b]{3cm}{", test, "}", fill=TRUE)
>

> Actually, cat() prints the string fine if one uses double backslashes. However, I can't save the result from cat() back to a vector. And when I use cat() inside the latex function from the Hmisc package, I only get errors... The (not so) funny thing is that I can use paste() on a few latex commands. So if I needed to make the strings bold, the following works:

>
> paste("\bfseries{", test, "}")
>
> I've read the R FAQ 7.37, but it only deals with cat(). Not paste. Or I just didn't get it :o/
>
> Is there a way to paste() the backslash character?
>
>> sessionInfo()
> R version 2.11.1 (2010-05-31)
> i486-pc-linux-gnu
>
> locale:
> [1] LC_CTYPE=en_US.utf8 LC_NUMERIC=C
> [3] LC_TIME=en_US.utf8 LC_COLLATE=en_US.utf8
> [5] LC_MONETARY=C LC_MESSAGES=en_US.utf8
> [7] LC_PAPER=en_US.utf8 LC_NAME=C
> [9] LC_ADDRESS=C LC_TELEPHONE=C
> [11] LC_MEASUREMENT=en_US.utf8 LC_IDENTIFICATION=C
>
> attached base packages:
> [1] stats graphics grDevices utils datasets methods base
>>
>
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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Wed 16 Jun 2010 - 11:59:35 GMT

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