An S4 class to represent a diversity measure.
.DataA numeric vector of diversity measures.
labelsA character vector giving the sample names.
sizeAn integer vector giving the sample sizes.
dataA numeric matrix of count data.
methodA character string specifying the method used.
simulationA four columns numeric matrix giving the diversity
measures for the simulated assemblage (sample size, mean estimate,
lower and upper boundaries of the confidence interval).
seedA numeric vector giving the value of .Random.seed before the
simulation was started; otherwise it is the user specified value with a
kind attribute with value as.list(RNGkind()).
In the code snippets below, x is an DiversityIndex object.
as.data.frame(x)Coerces to a data.frame.
N. Frerebeau
Other classes: 
CompositionIndex-class,
EvennessIndex-class,
HeterogeneityIndex-class,
RarefactionIndex-class,
RichnessIndex-class