R help - Sep 2005 - Long lines with Sweave

I have used Sweave a lot the latest year, but never really used any long 
function calls.


If I have code which look like this

-------------------------------------------------------------
gof <- benthic.flux(ID="Gulf of Finland",
                     meas.conc=conc,
                     bw.conc=bw.conc,
                     time=times,
                     substance=expression(DIC~(mmol~m^{-3}))
                     )
-------------------------------------------------------------

I get the output by Sweave in my pdf file, like this:

---------------------------------------------------------------
 > gof <- benthic.flux(ID = "Gulf of Finland", meas.conc = conc,
+ bw.conc = bw.conc, time = times, substance = expression(DIC ~
+ (mmol ~ m^{
+ -3
+ })))
----------------------------------------------------------------

I can understand that it will not look exactly as entered but why is the 
'-3' on a line of it's own?

Can anyone suggest a idea to how I can make this more readable.

---------------------------------------------
Henrik Andersson
Netherlands Institute of Ecology -
Centre for Estuarine and Marine Ecology
P.O. Box 140
4400 AC Yerseke
Phone: +31 113 577473
h.andersson at nioo.knaw.nl
http://www.nioo.knaw.nl/ppages/handersson

On Wed, Sep 14, 2005 at 10:14:59AM +0200, Henrik Andersson
wrote:
> I have used Sweave a lot the latest year, but never really used any long 
> function calls.
> 
> 
> If I have code which look like this
> 
> -------------------------------------------------------------
> gof <- benthic.flux(ID="Gulf of Finland",
>                      meas.conc=conc,
>                      bw.conc=bw.conc,
>                      time=times,
>                      substance=expression(DIC~(mmol~m^{-3}))
>                      )
> -------------------------------------------------------------
> 
> I get the output by Sweave in my pdf file, like this:
> 
> ---------------------------------------------------------------
>  > gof <- benthic.flux(ID = "Gulf of Finland", meas.conc =
conc,
> + bw.conc = bw.conc, time = times, substance = expression(DIC ~
> + (mmol ~ m^{
> + -3
> + })))
> ----------------------------------------------------------------
> 
> I can understand that it will not look exactly as entered but why is the 
> '-3' on a line of it's own?
> 
> Can anyone suggest a idea to how I can make this more readable.
It seems you've been thinking LaTeX rather than R ;-)  :
The exponent "-3" in the expression should be enclosed by parentheses
rather than by curly braces.

The code formatting done by the print method inserts the newline after
"{" and before "}".

Best regards, Jan
-- 
 +- Jan T. Kim -------------------------------------------------------+
 |    *NEW*    email: jtk at cmp.uea.ac.uk                               |
 |    *NEW*    WWW:   http://www.cmp.uea.ac.uk/people/jtk             |
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