as.incfreq: Transform incidence raw data to incidence frequencies (iNEXT input format)
Description
as.incfreq: transform incidence raw data (a species by sites presence-absence matrix) to incidence frequencies data (iNEXT input format, a row-sum frequencies vector contains total number of sampling units).
Usage
as.incfreq(x)
Value
a vector of species incidence frequencies, the first entry of the input data must be total number of sampling units.
Arguments
x
a data.frame or matirx of species by sites presence-absence matrix.