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)
Arguments
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.