appletree {lmreg}

Apple yield with cropping under tree

Description

Apple crop volume under various ground covers underneath tree (Pearce, 1983)

Usage

data(appletree)

Format

A data frame with 24 observations on the following 4 variables.

Weight

Total weight (in pounds) of apple produced in a plot in four years, post-treatment

Treatment

Five types of permanent cropping under the apple tree (coded as 1 to 5), or no cropping at all (0)

Block

Blocks coded as 1 to 4

Volume

Total crop volume (in bushels) in four years, pre-treatment

Source

Pearce, S.C. (1983) The Agricultural Field Experiment, Wiley, Chechester, p.284.

Examples

data(appletree)
head(appletree)