Re: [R] nlsList{nlme} control of min and max parameter bounds?

.. and do not forget that the real power comes from using nlme after nlsList; i.e. on the result of nlsList, even if some did not converge! The effect of taming outliers can be amazing. See Pinheiro/Bates or http://www.menne-biomed.de/gastempt/index.html Dieter From: Steve Oswald

Re: [R] nlsList{nlme} control of min and max parameter bounds?

Thanks Dieter That solved the issue. I had negative parameters but I customized a selfStart function which contained the following lines for the optimization of my five parameter function (entered in the vector 'value'): #function to optimize func1 - function( value) { A = value[1] k =

Re: [R] nlsList{nlme} control of min and max parameter bounds?

Steve Oswald wrote: I'm analysing growth rates using a gompertz (logistic) curve and am attempting to fit parameters for all of my study birds using nlsList. I've been looking for an option in nlsList to set min and max limits for parameter values during estimation, although I have

[R] nlsList{nlme} control of min and max parameter bounds?

Hi All I'm analysing growth rates using a gompertz (logistic) curve and am attempting to fit parameters for all of my study birds using nlsList. I've been looking for an option in nlsList to set min and max limits for parameter values during estimation, although I have failed to find any

[R] nlsList{nlme} control of min and max parameter bounds?

Hi All I'm analysing growth rates using a gompertz (logistic) curve and am attempting to fit parameters for all of my study birds using nlsList. I've been looking for an option in nlsList to set min and max limits for parameter values during estimation, although I have failed to find any