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 "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 and "Practical Regression and ANOVA in R" contributed documentation on CRAN (now very dated).

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>field</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>irrigation</dt>
<dd>a factor with levels <code>i1</code> <code>i2</code> <code>i3</code>
<code>i4</code></dd>
 <dt>variety</dt>
<dd>a factor with levels <code>v1</code> <code>v2</code></dd><dt>yield</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>field</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>irrigation</dt>
<dd>a factor with levels <code>i1</code> <code>i2</code> <code>i3</code>
<code>i4</code></dd>
 <dt>variety</dt>
<dd>a factor with levels <code>v1</code> <code>v2</code></dd>

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

irrigation: Irrigation methods in an agricultural field trial

Description

Arguments

Format

Examples