[R] Backslash in paste() function

[Uwe Ligges]

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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