Oranges {glmtoolbox}

Oranges

Description

The data arose from five orange trees grown in Riverside, California, during 1969-1973. The response is the trunk circumference, in millimeters, and the predictor variable is time, in days. The predictor variable has an arbitrary origin and was taken on December 31, 1968.

Usage

data(Oranges)

Format

A data frame with 35 rows and 3 variables:

Trunk

a numeric vector indicating the trunk circumference, in millimeters.

Days

a numeric vector indicating the time, in days, since December 31, 1968.

Tree

a numeric vector with the identifier of each orange tree.

References

Draper N., Smith H. (1998) Applied Regression Analysis, Third Edition. John Wiley & Sons.

Examples

dev.new()
data(Oranges)
with(Oranges,plot(Days, Trunk, pch=16, col="blue"))