R help - Aug 2012 - Changing line length in Sweave output works for numeric, but not for character vectors

Hi there: I'm preparing a report in RStudio 0.96.330 on a Mac OS. I'm
running R 2.15.0

I understand from Ross Ihaka's document
(http://www.stat.auckland.ac.nz/~stat782/downloads/Sweave-customisation.pdf)
that you can modify the line length of Sweave output by a call to
options(wdith=x).

This works great for me for numeric output, but not for character vectors that I
have to print. The following is some sample code that illustrates my problem.

Is there a different way to format character vectors that are stored in R?
Yours, Simon Kiss

\documentclass{article}

\begin{document}
\SweaveOpts{concordance=TRUE}

<<echo=TRUE, results=verbatim>>seq(1,100,1)
@

<<echo=TRUE, results=verbatim>>options(width=30)
@
<<echo=TRUE, results=verbatim>>seq(1,100,1)
@

<<echo=TRUE, results=verbatim>>test<-c('The government should
do more to advance societys goals, even if that means limiting the freedom and
choices of individuals.')
@

\end{document}
*********************************
Simon J. Kiss, PhD
Assistant Professor, Wilfrid Laurier University
73 George Street
Brantford, Ontario, Canada
N3T 2C9
Cell: +1 905 746 7606

Please avoid sending me Word, PowerPoint or Excel attachments. Sending these
documents puts pressure on them to use Microsoft software and helps to deny them
any other choice. In effect, you become a buttress of the Microsoft
monopoly. This pressure is a major obstacle to the broader adoption of free
software.

To convert to plain text choose Text Only or Text Document as the Save As Type. 
Your computer may also have a program to convert to PDF format. Select File,
then Print. Scroll through available printers and select the PDF converter.
Click on the Print button and enter a name for the PDF file when requested.

Two possible solutions:

1. Redefine the LaTeX environment so it allows wrapping (see listings
for example);
2. Manually break your long string into shorter pieces and paste()
them together, e.g. paste('long', 'long', 'string')

Regards,
Yihui
--
Yihui Xie <xieyihui at gmail.com>
Phone: 515-294-2465 Web: http://yihui.name
Department of Statistics, Iowa State University
2215 Snedecor Hall, Ames, IA


On Mon, Aug 20, 2012 at 5:03 PM, Simon Kiss <sjkiss at gmail.com>
wrote:
> Hi there: I'm preparing a report in RStudio 0.96.330 on a Mac OS.
I'm running R 2.15.0
>
> I understand from Ross Ihaka's document
(http://www.stat.auckland.ac.nz/~stat782/downloads/Sweave-customisation.pdf)
that you can modify the line length of Sweave output by a call to
options(wdith=x).
>
> This works great for me for numeric output, but not for character vectors
that I have to print. The following is some sample code that illustrates my
problem.
>
> Is there a different way to format character vectors that are stored in R?
> Yours, Simon Kiss
>
> \documentclass{article}
>
> \begin{document}
> \SweaveOpts{concordance=TRUE}
>
> <<echo=TRUE, results=verbatim>>> seq(1,100,1)
> @
>
> <<echo=TRUE, results=verbatim>>> options(width=30)
> @
> <<echo=TRUE, results=verbatim>>> seq(1,100,1)
> @
>
> <<echo=TRUE, results=verbatim>>> test<-c('The
government should do more to advance societys goals, even if that means limiting
the freedom and choices of individuals.')
> @
>
> \end{document}
> *********************************
> Simon J. Kiss, PhD
> Assistant Professor, Wilfrid Laurier University
> 73 George Street
> Brantford, Ontario, Canada
> N3T 2C9
> Cell: +1 905 746 7606
>
> Please avoid sending me Word, PowerPoint or Excel attachments. Sending
these documents puts pressure on them to use Microsoft software and helps to
deny them any other choice. In effect, you become a buttress of the Microsoft
> monopoly. This pressure is a major obstacle to the broader adoption of free
software.
>
> To convert to plain text choose Text Only or Text Document as the Save As
Type.  Your computer may also have a program to convert to PDF format. Select
File, then Print. Scroll through available printers and select the PDF
converter. Click on the Print button and enter a name for the PDF file when
requested.
>
> ______________________________________________
> R-help at r-project.org mailing list
> 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.

Hi Simon

try strwrap(test)

regards,
Enrico

Am 20.08.2012 23:03, schrieb Simon Kiss:
> Hi there: I'm preparing a report in RStudio 0.96.330 on a Mac OS.
I'm running R 2.15.0
>
> I understand from Ross Ihaka's document
(http://www.stat.auckland.ac.nz/~stat782/downloads/Sweave-customisation.pdf)
that you can modify the line length of Sweave output by a call to
options(wdith=x).
>
> This works great for me for numeric output, but not for character vectors
that I have to print. The following is some sample code that illustrates my
problem.
>
> Is there a different way to format character vectors that are stored in R?
> Yours, Simon Kiss
>
> \documentclass{article}
>
> \begin{document}
> \SweaveOpts{concordance=TRUE}
>
> <<echo=TRUE, results=verbatim>>> seq(1,100,1)
> @
>
> <<echo=TRUE, results=verbatim>>> options(width=30)
> @
> <<echo=TRUE, results=verbatim>>> seq(1,100,1)
> @
>
> <<echo=TRUE, results=verbatim>>> test<-c('The
government should do more to advance societys goals, even if that means limiting
the freedom and choices of individuals.')
> @
>
> \end{document}
> *********************************
> Simon J. Kiss, PhD
> Assistant Professor, Wilfrid Laurier University
> 73 George Street
> Brantford, Ontario, Canada
> N3T 2C9
> Cell: +1 905 746 7606
>