Re: Stalled at a point
- To: mathgroup at smc.vnet.net
- Subject: [mg75228] Re: Stalled at a point
- From: dh <dh at metrohm.ch>
- Date: Sat, 21 Apr 2007 23:08:12 -0400 (EDT)
- References: <f09fmg$kj$1@smc.vnet.net>
Hi Fulya, first check if an acceptable fit has been reached. If not, use the option "StartingParameters " to specifying better start values for the parameters. hope this helps, Daniel Fulya Bag(c? wrote: > Hello everyone, > > I want to fit data to a function and find two parameters beta and beam > radius.I use NonlinearRegress for this. But it gives this error after 10 > iterations: > The step size in the search has become less than the tolerance prescribed by > the PrecisionGoal option, but the gradient is larger than the tolerance > specified by the AccuracyGoal option. There is a possibility that the method > has stalled at a point which is not a local minimum. > What do I have to do ? > Any help is greatfully appreciated. > Thank you, > > Fulya > >