R help - Aug 2006 - Lattice package par.settings/trellis.par.settings questions

Hi All,

I'm trying to modify some of the default graphic parameters in a 
conditional histogram. While I was able to change the default grey 
background to white, I couldn't change the axis.font or the xlab font.

I used the following code:

/histogram(~V751|V013+V025, finalbase, xlab="Heard of HIV/AIDS 
(No/Yes)", col=c("cyan","magenta"),
par.settings=list(background="white"))

/The arguments for example  like /axis.font=2/, or /cex=2/ are not 
working in the /par.settings(). /I also tried to read the manual of 
/trellis.par.settings()/ but didn't understand how to use it and where 
exactly to put it.

Any help with this will be appreciated.

Thanks,
Debarchana.

-- 
Debarchana Ghosh
Research Assistant
Department of Geography
University of Minnesota
PH: 8143607580
email to: ghos0033 at umn.edu
www.tc.umn.edu/~ghos0033

The parameter names are axis.text$font and axis.text$cex .
Try issuing the command:
  trellis.par.get()
to get a complete list.

Here is an example:

histogram(1:10, par.settings = list(axis.text = list(font = 2, cex = 0.5)))


On 8/17/06, Debarchana Ghosh <ghos0033 at umn.edu>
wrote:
> Hi All,
>
> I'm trying to modify some of the default graphic parameters in a
> conditional histogram. While I was able to change the default grey
> background to white, I couldn't change the axis.font or the xlab font.
>
> I used the following code:
>
> /histogram(~V751|V013+V025, finalbase, xlab="Heard of HIV/AIDS
> (No/Yes)", col=c("cyan","magenta"),
par.settings=list(background="white"))
>
> /The arguments for example  like /axis.font=2/, or /cex=2/ are not
> working in the /par.settings(). /I also tried to read the manual of
> /trellis.par.settings()/ but didn't understand how to use it and where
> exactly to put it.
>
> Any help with this will be appreciated.
>
> Thanks,
> Debarchana.
>
> --
> Debarchana Ghosh
> Research Assistant
> Department of Geography
> University of Minnesota
> PH: 8143607580
> email to: ghos0033 at umn.edu
> www.tc.umn.edu/~ghos0033
>
> ______________________________________________
> R-help at stat.math.ethz.ch 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.
>

Please read about lattice.par.settings, and not trellis.par.settings. Trellis is
in S/S-plus. Anupam.

On 8/17/06, Debarchana Ghosh <ghos0033 at umn.edu>
wrote:
> Hi All,
>
> I'm trying to modify some of the default graphic parameters in a
> conditional histogram. While I was able to change the default grey
> background to white, I couldn't change the axis.font or the xlab font.
The default background is no longer grey in the latest release.
> I used the following code:
>
> /histogram(~V751|V013+V025, finalbase, xlab="Heard of HIV/AIDS
> (No/Yes)", col=c("cyan","magenta"),
par.settings=list(background="white"))
>
> /The arguments for example  like /axis.font=2/, or /cex=2/ are not
> working in the /par.settings(). /I also tried to read the manual of
> /trellis.par.settings()/ but didn't understand how to use it and where
> exactly to put it.
The documentation is certainly lacking in this area (I hope to improve
it in the coming months). Gabor mentioned the settings for axis
labels. The xlab text is controlled by "par.xlab.text", try:

str(trellis.par.get("par.xlab.text"))

Both can be controlled in the call directly, e.g.

histogram(1:10,
          scales = list(font = 2, cex = 0.5),
          xlab = list(cex = 2, col = 'red'))

Such use /is/ fairly well documented.

Deepayan