[R] response surface

[Jason Turner]

On Wed, Sep 25, 2002 at 05:49:11PM -0600, Nathan Leon Pace, MD, MStat wrote:
> I have a response surface model (z ~ x*y) which is displayed as a 
> trellis wireframe plot.
> 
> I wish to cut the surface at various linear planes in the z axis (e.g. z 
> = 50, etc.). Are there any packages which offer functions to do so?

Would the subset argument to wireframe help?  e.g. 

wireframe(z ~ x*y, subset= (z > 50))

Cheers

Jason
-- 
Indigo Industrial Controls Ltd.
64-21-343-545
jasont at indigoindustrial.co.nz
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