[S] image function change in s-plus version 4.5

["Bishop, Lane" <Lane.Bishop@alliedsignal.com>]

I have installed S-Plus version 4.5 for Windows, and unfortunately blown
away version 4.0.  I had existing code using version 4.0 to make a 2x2
array of image plots in which I need to make the color encoding the same
for each plot.  I used the "image" function using the optional argument
"zlim=" to make the color range match the total range of the z data on
all the plots.  However, version 4.5 keeps reducing the range to no
larger than the actual data range on each plot.  Can this be overcome?

Simplified example:

  yy <- xx <- seq(-3,3,0.2)
  zz <- outer( xx, yy )

Now compare:

  image( xx, yy, zz )     # defaults
  image( xx, yy, zz, zlim=c(-5,5) )  # smaller range
  image( xx, yy, zz, zlim=c(-15,15) )  # larger range

The third plot is identical to the first.

  - Lane Bishop (lane.bishop@alliedsignal.com)


-----------------------------------------------------------------------
This message was distributed by s-news@wubios.wustl.edu.  To unsubscribe
send e-mail to s-news-request@wubios.wustl.edu with the BODY of the
message:  unsubscribe s-news