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MathGroup Archive 2006

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NonlinearRegress with weight

  • To: mathgroup at smc.vnet.net
  • Subject: [mg68813] NonlinearRegress with weight
  • From: "sguthery at mobile-mind.com" <sguthery at mobile-mind.com>
  • Date: Sat, 19 Aug 2006 00:41:31 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

I'm using NonlinearRegress with weights.  The weights are strictly
monotonic.  When I run NonlinearRegress with them monotonically
decreasing it runs just fine.  But if I run NonlinearRegress with the
weights (and the data) reversed; i.e. the weights being monotonically
increasing, NonlinearRegress crashes.

Is this reasonalble behavior?  I had expected the same answer
regardless of the order of the weights and the data.

Thanks for any insight.

Cheers, Scott


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