lizards

These are data on the structural habitat of two species of lizards in 
Whitehouse, Jamaica. They comprise
observed counts for perch height, perch diameter, insolation, 
and time of day, for both species. The
data can be represented as a 2 x 2 x 2 x 3 x 2 contingency table.

datasets

Contains the datasets and a few functions for use with
the practicals outlined in Appendix A of the book
Statistical Models (Davison, 2003, Cambridge University Press),
which can be found at <doi:10.1017/CBO9780511815850>.

Alessandra Brazzale

SMPracticals

Practicals for Use with Davison (2003) Statistical Models

lizards function

A data frame with 48 observations on the following 6 variables.<dl>
 <dt>height</dt>
<dd><code>high</code> indicates perch at height 
5 or more feet, <code>low</code> indicates perch below 5 feet.</dd> <dt>diameter</dt>
<dd><code>large</code> indicates perch diameter 2 inches or more, 
 <code>small</code> indicates perch diameter less than 2 inches.</dd> <dt>sun</dt>
<dd>Is the perch in a <code>shady</code> or a <code>sunny</code> location?</dd> <dt>time</dt>
<dd>Time of day when lizard observed: <code>early</code>, 
<code>late</code> or <code>midday</code>.</dd> <dt>species</dt>
<dd>Species of lizard: <code>grahami</code> or <code>opalinus</code>.</dd> <dt>y</dt>
<dd>Number of lizards seen.</dd> 
</dl>

Format

Lizard Count Data — lizards

A data frame with 48 observations on the following 6 variables.<dl>
 <dt>height</dt>
<dd><code>high</code> indicates perch at height 
5 or more feet, <code>low</code> indicates perch below 5 feet.</dd>

 <dt>diameter</dt>
<dd><code>large</code> indicates perch diameter 2 inches or more, 
 <code>small</code> indicates perch diameter less than 2 inches.</dd>

 <dt>sun</dt>
<dd>Is the perch in a <code>shady</code> or a <code>sunny</code> location?</dd>

 <dt>time</dt>
<dd>Time of day when lizard observed: <code>early</code>, 
<code>late</code> or <code>midday</code>.</dd>

 <dt>species</dt>
<dd>Species of lizard: <code>grahami</code> or <code>opalinus</code>.</dd>

 <dt>y</dt>
<dd>Number of lizards seen.</dd>

 
</dl>

lizards: Lizard Count Data

Description

Usage

Arguments

Format

Examples