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MathGroup Archive 1996

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Re: Trilinear plots

  • To: mathgroup at smc.vnet.net
  • Subject: [mg4674] Re: [mg4573] Trilinear plots
  • From: sherod at boussinesq.Colorado.EDU (Scott Herod)
  • Date: Thu, 22 Aug 1996 03:55:25 -0400
  • Organization: University of Colorado at Boulder
  • Sender: owner-wri-mathgroup at wolfram.com

I have seen such plots simply done on a triangle.  Of course this was
in the case that x+y+z=1 and x >= 0, y >= 0, and z >= 0.  I thought
that it was pretty clear what was happening in the problem.  These
were plots of the dynamics of bi-linear operators if I remember
correctly.

Scott Herod


At 5:15 AM 96/8/16, Michael Friendly wrote:
>I'm looking for ideas on how to do trilinear plots, ie, plots
>on three axes which form an equilateral triangle (where the three coords are
>usually scaled so they sum to 1 for each observation)?
>
>Equivalently, this plot can be described as a plot of the locations of 3D
>points in the plane defined by x+y+z=1.


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