Growth of Loblolly pine trees
Records of the growth of Loblolly pine trees.
Tree height (ft).
Tree age (years).
Seed source for the tree. Ordering is according to increasing maximum height.
Kung, F. H. (1986). Fitting logistic growth curve with predetermined carrying capacity. Proceedings of the Statistical Computing Section, American Statistical Association, 340–343.
Pinheiro, J. C. and Bates, D. M. (2000). Mixed-effects Models in S and S-PLUS. New York: Springer.
t = octave.dataset.Loblolly; t2 = t(t.Seed == "329",:); scatter (t2.age, t2.height) xlabel ("Tree age (yr)"); ylabel ("Tree height (ft)"); title ("Loblolly data and fitted curve (Seed 329 only)") # TODO: Compute and plot fitted curve