[R] Simple Plot with Grid's Viewport

[baptiste auguie]

On 19 Mar 2009, at 07:22, Dieter Menne wrote:

> Gundala Viswanath <gundalav <at> gmail.com> writes:
>
>> I have the following code that try to plot
>> simple sinus curve into 2x2 grid in 1 page.
>>
>> But this code of mine create 4 plots in 1 page
>> each. What's wrong with my approach?
> ...
>> library(lattice)
>> library(grid)
>>
>> test.plot <- function(x,y) {
>>  pushViewport(viewport(layout.pos.col=x, layout.pos.row=y))
>>  pushViewport(viewport(width=0.6, height=0.6));
>>  plot(sin,-pi,2*pi, main= paste(c(i,j),collapse="-") )
>>
>> }
>>
> ...         test.plot(i,j);
>
> plot (plot.default) is "old-style" graphics and dates before grid.
> Note that your program would run without error when you remove
> the library(grid).
>
> Use print(xyplot(..)) instead, or use par(...) to generate the
> layout for your standard plots.
>
> Dieter
>

Alternatively, you can

- use grid.points or a similar grid function to create the plot, as  
described in Paul Murrell's tutorial,
  http://www.stat.auckland.ac.nz/~paul/grid/doc/plotexample.pdf

- use ggplot2 instead of plot

- use gridBase to mix base graphics and grid graphics

- use split.screen in combination with base graphics


baptiste

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_____________________________

Baptiste Auguié

School of Physics
University of Exeter
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Exeter, Devon,
EX4 4QL, UK

Phone: +44 1392 264187

http://newton.ex.ac.uk/research/emag