[R-sig-eco] Help in code for fitting a growth model in R

[Chandrasekhar Rudrappa]

I have to fit a model to growth data of Hevea (rubber) trees. The details
are outlined in the attached docx file.  Kind help is solicited.

-- 
Dr. TR Chandrasekhar, M.Sc., M. Tech., Ph. D.,
Sr. Scientist
Rubber Research Institute of India
Hevea Breeding Sub Station
Kadaba - 574 221
DK Dt., Karnataka
Phone-Land: 08251-214336
Mobile: 9448780118