butterfat

Average butterfat content
 (percentages) of milk for random samples of twenty cows (ten
 two-year old and ten mature (greater than four years old)) from each
 of five breeds. The data are from Canadian records of pure-bred
 dairy cattle.

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

butterfat function

A data frame with 100 observations on the following 3 variables.<dl>
 <dt><code>Butterfat</code></dt>
<dd>butter fat content by percentage</dd> <dt><code>Breed</code></dt>
<dd>a factor with levels <code>Ayrshire</code> <code>Canadian</code> <code>Guernsey</code> <code>Holstein-Fresian</code> <code>Jersey</code></dd> <dt><code>Age</code></dt>
<dd>a factor with levels <code>2year</code> <code>Mature</code></dd> 
</dl>

Format

Butterfat content of milk by breed — butterfat

A data frame with 100 observations on the following 3 variables.<dl>
 <dt><code>Butterfat</code></dt>
<dd>butter fat content by percentage</dd>

 <dt><code>Breed</code></dt>
<dd>a factor with levels <code>Ayrshire</code> <code>Canadian</code> <code>Guernsey</code> <code>Holstein-Fresian</code> <code>Jersey</code></dd>

 <dt><code>Age</code></dt>
<dd>a factor with levels <code>2year</code> <code>Mature</code></dd>

 
</dl>

butterfat: Butterfat content of milk by breed

Description

Usage

Arguments

Format

Examples