simResultsNested

The dataset contains the results of applying ecocbo::prep_data() to epiDat.
The result is a list with one level: $Results is a data frame with the results
of applying PERMANOVA to epiDat a number of times, it contains the values of
pseudoF and the mean squares for different repeated sampling efforts.

datasets

A system for calculating the optimal sampling effort, based on the ideas of
"Ecological cost-benefit optimization" as developed by A. Underwood (1997,
ISBN 0 521 55696 1). Data is obtained from simulated ecological communities with
prep_data() which formats and arranges the initial data, and then the
optimization follows the following procedure of four functions: (1) prep_data()
takes the original dataset and creates simulated sets that can be used as a
basis for estimating statistical power and type II error. (2) sim_beta() is used
to estimate the statistical power for the different sampling efforts specified
by the user. (3) sim_cbo() calculates then the optimal sampling effort, based
on the statistical power and the sampling costs. Additionally, (4) scompvar()
calculates the variation components necessary for (5) Underwood_cbo() to calculate
the optimal combination of number of sites and samples depending on either
an economic budget or on a desired statistical accuracy. Lastly, (6) plot_power()
helps the user visualize the results of sim_beta().

Arturo Sanchez-Porras

ecocbo

Calculating Optimum Sampling Effort in Community Ecology

Edlin Guerra-Castro

simResultsNested function

An object of class "ecocbo_data", also a list containing one data frame.
The format is:<dl>
<dt>$Results</dt>
<dd>
<dl>
<dt>dat.sim</dt>
<dd>simulation from which the results are obtained.</dd><dt>k</dt>
<dd>number of resample for the result.</dd><dt>m</dt>
<dd>number of sites considered for the result.</dd><dt>n</dt>
<dd>number of replicates within each site for the result.</dd><dt>pseudoFH0</dt>
<dd>observed F value for the experimental design, when all observations belong to one site.</dd><dt>pseudoFHa</dt>
<dd>observed F value for the experimental design, when observations belong to different sites.</dd><dt>MSB(A)</dt>
<dd>calculated mean squares among sites in the experiment.</dd><dt>MSR</dt>
<dd>calculated mean squares for the residuals in the experiment.</dd>
</dl></dd><dt>$model</dt>
<dd>"single.factor"</dd><dt>attribute</dt>
<dd>class: ecocbo_data</dd>
</dl>

Format

Data set containing the results of applying ecocbo::prep_data() to a nested
factors experiment. — simResultsNested

An object of class "ecocbo_data", also a list containing one data frame.
The format is:<dl>
<dt>$Results</dt>
<dd>
<dl>
<dt>dat.sim</dt>
<dd>simulation from which the results are obtained.</dd>

<dt>k</dt>
<dd>number of resample for the result.</dd>

<dt>m</dt>
<dd>number of sites considered for the result.</dd>

<dt>n</dt>
<dd>number of replicates within each site for the result.</dd>

<dt>pseudoFH0</dt>
<dd>observed F value for the experimental design, when all observations belong to one site.</dd>

<dt>pseudoFHa</dt>
<dd>observed F value for the experimental design, when observations belong to different sites.</dd>

<dt>MSB(A)</dt>
<dd>calculated mean squares among sites in the experiment.</dd>

<dt>MSR</dt>
<dd>calculated mean squares for the residuals in the experiment.</dd>


</dl></dd>

<dt>$model</dt>
<dd>"single.factor"</dd>

<dt>attribute</dt>
<dd>class: ecocbo_data</dd>


</dl>

simResultsNested: Data set containing the results of applying ecocbo::prep_data() to a nested factors experiment.

Description

Usage

Arguments

Format

Details