check_repeat

a numeric vector. The vector <code>fobs</code> contains the
quantitative performances of assemblages.

fobs

a matrix of occurrence (occurrence of elements).
Its first dimension equals to <code>length(fobs)</code>. Its second dimension
 equals to the number of elements.

mOccur

a character equals to <code>"amean"</code> or <code>"gmean"</code>.
Switchs to arithmetic formula if <code>opt.mean = "amean"</code>.
Switchs to geometric formula if <code>opt.mean = "gmean"</code>.
Modelled performances are computed
using arithmetic mean (<code>opt.mean = "amean"</code>)
or geometric mean (<code>opt.mean = "gmean"</code>)
according to <code>opt.model</code>.

opt.mean

a logical.
in any case, the function looks for
different assemblages with identical elemental composition.
Messages indicate these identical assemblages.
If <code>opt.repeat = FALSE</code> (by default),
their performances are averaged.
If <code>opt.repeat = TRUE</code>, nothing is done,
and the data are processed as they are.

opt.repeat

Check if several assemblages
have the same elemental composition,
then average the performances of assemblages
with an identical elemental composition.

internal

Cluster together the components that make up an interactive
system on the basis of their functional redundancy
for one or more collective, systemic performances.
Plot the hierarchical tree of component clusters,
the modelled and predicted performances of component assemblages,
and other results associated with a functional clustering.
Test and prioritize the significance of the different components
that make up the interactive system,
of the different assemblages of components that make up the dataset,
and of the different performances observed on the component assemblages.
The method finds application in ecology, for instance,
where the system is an ecosystem, the components are organisms or species,
and the systemic performance is the production of biomass
or the respiration of the ecosystem.
The method is extensively described in
Jaillard B, Deleporte P, Loreau M, Violle C (2018)
"A combinatorial analysis using observational data identifies species
that govern ecosystem functioning"
<doi:10.1371/journal.pone.0201135>.

check_repeat: Check for identical assemblages

Description

Usage

Arguments

Value

Details