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Re: NonlinearModelFit and assumptions on fit parameters

• To: mathgroup at smc.vnet.net
• Subject: [mg128203] Re: NonlinearModelFit and assumptions on fit parameters
• From: DC <b.gatessucks at gmail.com>
• Date: Mon, 24 Sep 2012 00:31:48 -0400 (EDT)
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• Delivered-to: l-mathgroup@wolfram.com
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• References: <k3mc32$72m$1@smc.vnet.net>

You can include contraints on the parameters as in :

nlm = NonlinearModelFit[data, 
  {fitFuncExactNoLosses[a, b, x],b>0}, {{a, 1}, {b, 1}}, x]