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Slow trellis graphics in S-Plus 6 (Windows 95)

To: "S-News (E-mail)" <s-news@wubios.wustl.edu>
Subject: Slow trellis graphics in S-Plus 6 (Windows 95)
From: "Wright, Kevin" <kevin.wright@pioneer.com>
Date: Thu, 27 Sep 2001 13:45:49 -0500
I've recently started experimenting with S-Plus 6 (release 2) on Windows 95.
I was disappointed by how slow trellis graphics appear to be.  I'm curious
if other people are seeing similar results.  Are there ways to speed up
trellis graphics?  Are "editable graphics" a culprit here?  Should I subset
only the columns of the dataframe which I need before calling trellis?

Here are two examples:

Example #1

a<-example.bwplot()
print(proc.time());print(a);print(proc.time())

S-Plus 2000  0.68 sec
S-Plus 6r2   3.62 sec

Example #2

In another example I had 18 panels, 4 boxplots per panel, 6 values per
boxplot:

S-Plus 2000 18.97 sec
S-Plus 6r2  27.85 sec

The latter seems achingly slow on S-Plus 6.  It is possible to watch each
boxplot being drawn one at a time with a noticeable time lag in betwen each
boxplot.

Best,

Kevin Wright, Research Scientist
Pioneer Hi-Bred Int'l, x4054.



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