MathGroup Archive 1997

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  • To: mathgroup at
  • Subject: [mg8042] ImplicitPlot
  • From: neely at (E. Neely Atkinson)
  • Date: Sat, 2 Aug 1997 22:32:50 -0400
  • Organization: Univ. of Texas M. D. Anderson Cancer Center
  • Sender: owner-wri-mathgroup at

I am trying to produce a contour plot for a likelihood profile,
using ImplicitPlot. The two dimensional fuction I am trying to
contour involves minimizing with respect to two other nuisance
variables. As a simplified example, consider

f1[x1_,x2_,x3_,x4_] := 
   (x1-1)^2 + (x2-2)^2 + (x3-3)^2 + (x4-4)^2

f2[x1_,x2_] :=


When I do this, I get a string of errors and no plot. Can anyone
help? Thanks.

I am running MMA 3.0 on a Power Macintosh 9500/200, System 7.5.5.

                      E. Neely Atkinson
                      Department of Biomathematics
                      M. D. Anderson Cancer Center
                      Houston, TX

                      neely at

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