irrigation

In an agricultural field trial, the
objective was to determine the effects of two crop varieties and four
different irrigation methods. Eight fields were available, but only one
type of irrigation may be applied to each field. The fields may be
divided into two parts with a different variety planted in each half. 
The whole plot factor is the method of irrigation, which should be
randomly assigned to the fields. Within each field, the variety is
randomly assigned.

datasets

Books are "Practical Regression and ANOVA in R" on CRAN, "Linear Models with R" published 1st Ed. August 2004, 2nd Ed. July 2014 by CRC press, ISBN 9781439887332, and "Extending the Linear Model with R" published by CRC press in 1st Ed. December 2005 and 2nd Ed. March 2016, ISBN 9781584884248.

Julian Faraway

faraway

Functions and Datasets for Books by Julian Faraway

irrigation function

A data frame with 16 observations on the following 4 variables.<dl>
 <dt><code>field</code></dt>
<dd>a factor with levels <code>f1</code> <code>f2</code> <code>f3</code> <code>f4</code> <code>f5</code> <code>f6</code> <code>f7</code> <code>f8</code></dd> <dt><code>irrigation</code></dt>
<dd>a factor with levels <code>i1</code> <code>i2</code> <code>i3</code> <code>i4</code></dd> <dt><code>variety</code></dt>
<dd>a factor with levels <code>v1</code> <code>v2</code></dd> <dt><code>yield</code></dt>
<dd>a numeric vector</dd> 
</dl>

Format

Irrigation methods in an agricultural field trial — irrigation

A data frame with 16 observations on the following 4 variables.<dl>
 <dt><code>field</code></dt>
<dd>a factor with levels <code>f1</code> <code>f2</code> <code>f3</code> <code>f4</code> <code>f5</code> <code>f6</code> <code>f7</code> <code>f8</code></dd>

 <dt><code>irrigation</code></dt>
<dd>a factor with levels <code>i1</code> <code>i2</code> <code>i3</code> <code>i4</code></dd>

 <dt><code>variety</code></dt>
<dd>a factor with levels <code>v1</code> <code>v2</code></dd>

 <dt><code>yield</code></dt>
<dd>a numeric vector</dd>

 
</dl>

irrigation: Irrigation methods in an agricultural field trial

Description

Usage

Arguments

Format

Examples