teak {SMPracticals}

Teak Plant Data

Description

These are data from an experiment on the growth of teak plants after one season, using two planting methods and three root lengths. Plants were laid out in four randomised blocks, each consisting of 6 plots with 50 plants in each plot.

Usage

data(teak)

Format

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

Block

Block labels.

Plant

A indicates planting using pits, B using crowbar.

Root

length, 4, 6 or 8 inches.

y

mean height (inches) of the 50 plants grown on each plot.

Source

Unpublished lecture notes, Imperial College, London.

Examples

data(teak)
anova(lm(y~Block*Plant*Root,data=teak),test="F")