[R] nls problem with R

[sterlesser]

Thanks Mike.
Your suggestion is really helpful.I did with the your instruction , it
really works out.
What's more,can you use this package
http://cran.r-project.org/web/packages/minpack.lm/index.html
it use Levenberg-Marquardt algorithm.
Can this package do with four parameters?
Thanks again

--
View this message in context: http://r.789695.n4.nabble.com/nls-problem-with-R-tp3494454p3508126.html
Sent from the R help mailing list archive at Nabble.com.