codling

Data are from trials that studied the mortality response of codling moth
 to fumigation with methyl bromide.

datasets

Functions and data sets used in examples and exercises in the
text Maindonald, J.H. and Braun, W.J. (2003, 2007, 2010) "Data
Analysis and Graphics Using R", and in an upcoming Maindonald,
Braun, and Andrews text that builds on this earlier text.

W.J. Braun

DAAG

Data Analysis and Graphics Data and Functions

codling function

A data frame with 99 observations on the following 10 variables.<dl>
 <dt>dose</dt>
<dd>Injected dose of methyl bromide, in gm per cubic meter</dd> <dt>tot</dt>
<dd>Number of insects in chamber</dd> <dt>dead</dt>
<dd>Number of insects dying</dd> <dt>pobs</dt>
<dd>Proportion dying</dd> <dt>cm</dt>
<dd>Control mortality, i.e., at dose 0</dd> <dt>ct</dt>
<dd>Concentration-time sum</dd> <dt>Cultivar</dt>
<dd>a factor with levels <code>BRAEBURN</code> <code>FUJI</code> <code>GRANNY</code> <code>Gala</code> <code>ROYAL</code> <code>Red Delicious</code> <code>Splendour</code></dd> <dt>gp</dt>
<dd>a factor which has a different level for each different
combination of <code>Cultivar</code>, <code>year</code> and <code>rep</code> (replicate).</dd> <dt>year</dt>
<dd>a factor with levels <code>1988</code> <code>1989</code></dd> <dt>numcm</dt>
<dd>a numeric vector: total number of control insects</dd> 
</dl>

Format

Dose-mortality data, for fumigation of codling moth with methyl bromide — codling

A data frame with 99 observations on the following 10 variables.<dl>
 <dt>dose</dt>
<dd>Injected dose of methyl bromide, in gm per cubic meter</dd>

 <dt>tot</dt>
<dd>Number of insects in chamber</dd>

 <dt>dead</dt>
<dd>Number of insects dying</dd>

 <dt>pobs</dt>
<dd>Proportion dying</dd>

 <dt>cm</dt>
<dd>Control mortality, i.e., at dose 0</dd>

 <dt>ct</dt>
<dd>Concentration-time sum</dd>

 <dt>Cultivar</dt>
<dd>a factor with levels <code>BRAEBURN</code> <code>FUJI</code> <code>GRANNY</code> <code>Gala</code> <code>ROYAL</code> <code>Red Delicious</code> <code>Splendour</code></dd>

 <dt>gp</dt>
<dd>a factor which has a different level for each different
combination of <code>Cultivar</code>, <code>year</code> and <code>rep</code> (replicate).</dd>

 <dt>year</dt>
<dd>a factor with levels <code>1988</code> <code>1989</code></dd>

 <dt>numcm</dt>
<dd>a numeric vector: total number of control insects</dd>

 
</dl>

codling: Dose-mortality data, for fumigation of codling moth with methyl bromide

Description

Usage

Arguments

Format

Details