orob1

[Data describing the germination] &#8220;for seed Orobanche cernua cultivated in three dilutions of a bean 
 root extract. The mean proportions of the three sets are 0.142, 0.872 and 0.842, and the overall mean is 0.614.&#8221;
 (Crowder, 1978, Table 1).

datasets

Provides a set of functions to analyse
overdispersed counts or proportions. Most of the methods are
already available elsewhere but are scattered in different
packages. The proposed functions should be considered as
complements to more sophisticated methods such as generalized
estimating equations (GEE) or generalized linear mixed effect
models (GLMM).

Renaud Lancelot

Analysis of Overdispersed Data

orob1 function

A data frame with 16 observations on the following 3 variables.<dl>
 <dt>dilution</dt>
<dd>a factor with 3 levels: <code>1/1</code>, <code>1/25</code> and <code>1/625</code></dd>
.
 <dt>n</dt>
<dd>a numeric vector: the number of seeds exposed to germination.</dd> <dt>y</dt>
<dd>a numeric vector: the number of seeds which actually germinated.</dd> 
</dl>

Format

Germination Data — orob1

A data frame with 16 observations on the following 3 variables.<dl>
 <dt>dilution</dt>
<dd>a factor with 3 levels: <code>1/1</code>, <code>1/25</code> and <code>1/625</code></dd>
.
 <dt>n</dt>
<dd>a numeric vector: the number of seeds exposed to germination.</dd>

 <dt>y</dt>
<dd>a numeric vector: the number of seeds which actually germinated.</dd>

 
</dl>

orob1: Germination Data

Description

Usage

Arguments

Format

References