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8.2.45.48 octave.dataset.Orange

Static Method: out = Orange ()

Growth of Orange Trees

Description

Records of the growth of orange trees.

Format

Tree

A categorical indicating on which tree the measurement is made. Ordering is according to increasing maximum diameter.

age

Age of the tree (days since 1968-12-31).

circumference

Trunk circumference (mm). This is probably “circumference at breast height”, a standard measurement in forestry.

Source

The data are given in Box & Jenkins (1976). Obtained from the Time Series Data Library at http://www-personal.buseco.monash.edu.au/~hyndman/TSDL/.

References

Draper, N. R. and Smith, H. (1998). Applied Regression Analysis (3rd ed). New York: Wiley. (exercise 24.N).

Pinheiro, J. C. and Bates, D. M. (2000). Mixed-effects Models in S and S-PLUS. New York: Springer.

Examples

t = octave.dataset.Orange;

# TODO: Port coplot to Octave

# TODO: Linear model