Re: [R] Bounding or constraining parameters in non-linear regressions

2005-06-08 Thread Douglas Bates
On 6/7/05, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Dear R-Users, Being an engineer and not a statistician, my desired course of action may either be impossible or very simple. I am attempting to fit a non-linear model to some measured data. One term in the model contains a

[R] Bounding or constraining parameters in non-linear regressions

2005-06-07 Thread mwdavis
Dear R-Users, Being an engineer and not a statistician, my desired course of action may either be impossible or very simple. I am attempting to fit a non-linear model to some measured data. One term in the model contains a square-root, but in the course of regression, this term turns