
.. 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 [via R]
[mailto:ml-node+1840738-635202493-63626@n4.nabble.com] 
Sent: Thursday, April 15, 2010 5:03 AM
To: Dieter Menne
Subject: Re: 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'): 



 


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