shelltox

<p>This is a classical developmental toxicology data set. Pregnant banded Dutch rabbits
were treated with one of four levels of a chemical. The actual doses are not known,
instead the groups are designated as Control, Low, Medium, and High. Before term the
animals were sacrificed, and the total number of fetuses, as well as the number affected
by the treatment was recorded.</p>

datasets

Implements non-parametric analyses for clustered
binary and multinomial data. The elements of the cluster are assumed
exchangeable, and identical joint distribution (also known as marginal
compatibility, or reproducibility) is assumed for clusters of different
sizes. A trend test based on stochastic ordering is implemented.
Szabo A, George EO. (2010) <doi:10.1093/biomet/asp077>;
George EO, Cheon K, Yuan Y, Szabo A (2016) <doi:10.1093/biomet/asw009>.

Aniko Szabo

CorrBin

Nonparametrics with Clustered Binary and Multinomial Data

shelltox function

<p>A 'CBData' object, that is a data frame  with the following variables</p><table class="table">
<tr><td>Trt</td><td>factor giving treatment group</td></tr>
<tr><td>ClusterSize</td><td>the size of the litter</td></tr>
<tr><td>NResp</td><td>the number of affected fetuses</td></tr>
<tr><td>Freq</td><td>the number of litters with the given ClusterSize/NResp combination</td></tr>
</table><p></p><p></p>

Format

Shell Toxicology data — shelltox

<p>A 'CBData' object, that is a data frame  with the following variables</p><table class='table'>
<tr><td>Trt</td><td>factor giving treatment group</td></tr>
<tr><td>ClusterSize</td><td>the size of the litter</td></tr>
<tr><td>NResp</td><td>the number of affected fetuses</td></tr>
<tr><td>Freq</td><td>the number of litters with the given ClusterSize/NResp combination</td></tr>
</table>



shelltox: Shell Toxicology data

Description

Usage

Arguments

Format

Examples

Trt	factor giving treatment group
ClusterSize	the size of the litter
NResp	the number of affected fetuses
Freq	the number of litters with the given ClusterSize/NResp combination