dogwood_anthracnose

<p>Incidence data from the Dogwood Anthracnose Impact Assessment Program for
1990 and 1991, in the Southeast of the USA, reported by Zarnoch et al (1995).
Only plots with exactly n = 10 dogwood trees are present in the data set (168
and 161 plots in 1990 and 1991, respectively).</p>

datasets

A toolbox to make it easy to analyze plant disease epidemics. It
provides a common framework for plant disease intensity data recorded over
time and/or space. Implemented statistical methods are currently mainly
focused on spatial pattern analysis (e.g., aggregation indices, Taylor and
binary power laws, distribution fitting, SADIE and mapcomp methods). See
Madden LV, Hughes G, van den Bosch F (2007, ISBN: 978-089054-354-2) for
further information on these methods. Several data sets that were mainly
published in plant disease epidemiology literature are also included in this
package.

Christophe Gigot

epiphy

Analysis of Plant Disease Epidemics

dogwood_anthracnose function

<p>A data frame with 329 rows and 3 variables:</p><table><tr><td>
    [, 1] </td>
<td> t </td>
<td> Year of disease assessments (1990 or 1991).. </td>
</tr><tr><td>
    [, 2] </td>
<td> i </td>
<td> Number of diseased plants (from 0 to 10). </td>
</tr><tr><td>
    [, 3] </td>
<td> n </td>
<td> Sampling unit size. Here, n = 10 plants per sampling
                      unit (or plot). </td>
</tr></table>

dogwood_anthracnose: Incidence of dogwood anthracnose.

Description

Usage

Arguments

Format

[, 1]	t	Year of disease assessments (1990 or 1991)..
[, 2]	i	Number of diseased plants (from 0 to 10).
[, 3]	n	Sampling unit size. Here, n = 10 plants per sampling unit (or plot).