[R] Need suggestions for nice handling of MANY plots

Don MacQueen macq at llnl.gov
Wed Mar 27 18:35:30 CET 2002

I have a collection of SAS code that helps people review large 
amounts of data on a regular basis. It does this by using SAS's proc 
gplot with a "by" statement to prepare as many as 400 (yes, 400) 
separate graphs. The code is run on a remote unix host, and displayed 
on the reviewer's local desktop using X11 and SAS's display manager. 
The process is initiated from a web browser.

The good side of using proc gplot is that after all 400 have been 
displayed once, the user can use the PageUp/PageDown keys or the 
scroll bar to move through the plots, choosing which ones to spend 
more time with, etc.. It's also reasonably fast. The graphs, all of 
them, are evidently stored somehow, so that they remain available 
until SAS is exited.

The question is, how close can I come to providing this kind of 
capability using R or Splus?

Displaying each graph once is not a problem, it's the going back and 
reviewing them part I need ideas for.

My current best idea is to shove them all into a pdf file, which can 
be displayed inline in the reviewer's browser, or possibly downloaded.

Thanks for any ideas

Don MacQueen
Environmental Protection Department
Lawrence Livermore National Laboratory
Livermore, CA, USA
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