60 rats were fed varying diets to see which produced the greatest weight gain. Two diet factors were protein type: beef, pork, chicken and protein level: high and low.

datasets

This small collection of functions provides what we call elemental graphics for display of analysis of variance
results, David C. Hoaglin, Frederick Mosteller and John W. Tukey (1991, ISBN:978-0-471-52735-0), Paul R. Rosenbaum (1989)
<doi:10.2307/2684513>, Robert M. Pruzek and James E. Helmreich <https://jse.amstat.org/v17n1/helmreich.html>.
The term elemental derives from the fact that each function is aimed at construction of
graphical displays that afford direct visualizations of data with respect to the fundamental
questions that drive the particular analysis of variance methods. These functions can be
particularly helpful for students and non-statistician analysts. But these methods should be
quite generally helpful for work-a-day applications of all kinds, as they can help to identify
outliers, clusters or patterns, as well as highlight the role of non-linear transformations of data.

Frederic Bertrand

granova

Graphical Analysis of Variance

Robert M. Pruzek

James E. Helmreich

rat function

A data frame with 60 observations on the following 3 variables, no NAs.
<dl> <dt><code>Weight.Gain</code></dt>
<dd>Weight gain (grams) of rats fed the diets.</dd>
 <dt><code>Diet.Amount</code></dt>
<dd>Amount of protein in diet: 1 = High, 2 = Low.</dd>
 <dt><code>Diet.Type</code></dt>
<dd>Type of protein in diet: 1 = Beef, 2 = Pork, 3 = Cereal.</dd></dl>

Format

60 rats were fed varying diets to see which produced the greatest weight gain. Two diet factors were protein type: beef, pork, chicken and protein level: high and low.

Weight gains of rats fed different diets — rat

A data frame with 60 observations on the following 3 variables, no NAs.
<dl>

 <dt><code>Weight.Gain</code></dt>
<dd>Weight gain (grams) of rats fed the diets.</dd>


 <dt><code>Diet.Amount</code></dt>
<dd>Amount of protein in diet: 1 = High, 2 = Low.</dd>


 <dt><code>Diet.Type</code></dt>
<dd>Type of protein in diet: 1 = Beef, 2 = Pork, 3 = Cereal.</dd>



</dl>

rat: Weight gains of rats fed different diets

Description

Usage

Arguments

Format