x
a vector/matrix/list of species abundances or incidence frequencies.
If datatype = "incidence"
,
then the first entry of the input data must be total number of sampling units, followed by species incidence frequencies.
datatype
data type of input data: individual-based abundance data (datatype = "abundance"
),
sampling-unit-based incidence frequencies data (datatype = "incidence_freq"
) or species by sampling-units incidence matrix (datatype = "inci