[R] pgup/pgdown in R Graphics Window under Linux

[Paul Matthias Diderichsen]

Dear S-users.
This should be an easy one: How do I change pages on an X11 graphics 
device under linux?

I thought that the page-up/page-down keys were supposed to do the trick, 
but the frame (window) seems to be kind of immune to any kind of keyboard 
input. The only reaction I ever see is that the mouse pointer changes to a 
"+" when moved into the frame.

I issue these commands:

------------------------------ QUOTE START 
----------------------------------------

[pmd at vmware_diderpm ~]$ R

R version 2.5.1 (2007-06-27)
Copyright (C) 2007 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

  Natural language support but running in an English locale

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> library(lattice)
> xyplot(speed~dist|speed, data=cars, layout=c(3,3))
> sessionInfo()
R version 2.5.1 (2007-06-27)
i686-redhat-linux-gnu

locale:
LC_CTYPE=en_US.UTF-8;LC_NUMERIC=C;LC_TIME=en_US.UTF-8;LC_COLLATE=en_US.UTF-8;LC_MONETARY=en_US.UTF-8;LC_MESSAGES=en_US.UTF-8;LC_PAPER=en_US.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_US.UTF-8;LC_IDENTIFICATION=C

attached base packages:
[1] "stats"     "graphics"  "grDevices" "utils"     "datasets"  "methods"
[7] "base"

other attached packages:
  lattice
"0.15-11"
> 
-----------------------------QUOTE END 
-----------------------------------------
Which produces the following frame:




Is it necessary to initialize the graphics device so that old pages are 
stored and accessible for paging? Or am I just pressing the wrong buttons.

Any input is appreciated! Please let me know if further info re. 
versions/installed packages/etc is needed.

Thanks, PMD.



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