Dataset “Orange”

Description

The Orange data frame has 35 rows and 3 columns of records of the growth of orange trees.

First data of “Orange”

  Tree  age circumference
1    1  118            30
2    1  484            58
3    1  664            87
4    1 1004           115
5    1 1231           120
6    1 1372           142

Format

An object of class c(“nfnGroupedData”, “nfGroupedData”, “groupedData”, “data.frame”) containing the following columns:

• Tree: an ordered factor indicating the tree on which the measurement is made. The ordering is according to increasing maximum diameter.

• age: a numeric vector giving the age of the tree (days since 1968/12/31)

• circumference: a numeric vector of trunk circumferences (mm). This is probably “circumference at breast height”, a standard measurement in forestry.