Hi all,

This should be very simple.
I'm trying to specify the displayed output range for a
SpatialPixelsDataFrame when displayed with spplot.  Essentially I want to
specify the "z-limit" or the limits of the colorbar independent of the range
of the attribute data.

I suspect this may be possible using scale(limits) but can't find the right
syntax.

This is possible using "colorkey" in the levelplot function but using spplot
would be much easier.

Thanks, Burton

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