Rats

Teratology experiment investigating effects of dietary regimens or chemical agents on the fetal
development of rats in a laboratory setting. The experiment, as describred in Agresti (2015, Section 8.2.4),
regards female rats on iron-deficient diets, assigned to four groups. Rats in group 1 were given placebo
injections, and rats in other groups were given injections of an iron supplement.
This was done on days 7 and 10 in group 2, on days 0 and 7 in group 3, and weekly in group 4.
The 58 rats were made pregnant, sacrificed after 3 weeks, and then the total number of dead fetuses
was counted in each litter, as was the mother&lt;U+2019&gt;s hemoglobin level.

datasets

Contains the datasets for use with the book Salvan, Sartori and Pace (2020, ISBN:978-88-470-4002-1) "Modelli Lineari Generalizzati".

Nicola Sartori

MLGdata

Datasets for Use with Salvan, Sartori and Pace (2020)

Rats function

A data frame with 58 observations on the following 5 variables<dl class="dl-horizontal">
 <dt><code>litter</code></dt><dd>litter index</dd>
 <dt><code>group</code></dt><dd>group index (<code>1</code>, &#8230;, <code>4</code>)</dd>
 <dt><code>h</code></dt><dd>hemoglobin level of the mother</dd>
 <dt><code>n</code></dt><dd>number of fetuses in the litter</dd>
 <dt><code>s</code></dt><dd>number of dead fetuses in the litter</dd>
</dl>

Format

Teratology study — Rats

A data frame with 58 observations on the following 5 variables<dl class='dl-horizontal'>
 <dt><code>litter</code></dt><dd>litter index</dd>
 <dt><code>group</code></dt><dd>group index (<code>1</code>, &#8230;, <code>4</code>)</dd>
 <dt><code>h</code></dt><dd>hemoglobin level of the mother</dd>
 <dt><code>n</code></dt><dd>number of fetuses in the litter</dd>
 <dt><code>s</code></dt><dd>number of dead fetuses in the litter</dd>
</dl>

Rats: Teratology study

Description

Usage

Arguments

Format

References