Re: [R] Problem with nls.lm function of minpack.lm package.

2011-03-15 Thread Ravi Varadhan
d Larrivée Date: Tuesday, March 15, 2011 11:57 am Subject: [R] Problem with nls.lm function of minpack.lm package. To: "r-help@r-project.org" > Dear R useRs, > > I have a problem with nls.lm function of minpackl.lm package. > > I need to fit the Van Genuchten

[R] Problem with nls.lm function of minpack.lm package.

2011-03-15 Thread Yann Périard Larrivée
Dear R useRs, I have a problem with nls.lm function of minpackl.lm package. I need to fit the Van Genuchten Model to a set of data of Theta and hydraulic conductivity with nls.lm function of minpack.lm package. For the first fit, the parameter estimates keep changing even after 1000 iteration