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3D fitting of data points

• To: mathgroup at smc.vnet.net
• Subject: [mg48433] 3D fitting of data points
• From: "Tolonen, Ellen N" <entolonen at utep.edu>
• Date: Sat, 29 May 2004 03:06:55 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

Hello all,

I am trying to fit a set of 3D data points to a polynomial function 
(a(1)x^2 + a(2)y^2+a(3)z^2 + a(4)xy + a(5)xz + a(6)yz + a(7)x + a(8)y + 
a(9)z  - 1 = 0).   Is there a way to do three-dimensional fitting with 
NonLinearFit?  And, if so, how?

Thanks,

Ellen
entolonen at utep.edu