Homoteneity Analysis of Classified Ecological Communities
Homoteneity is defined as ‘the mean constancy of the S most constant species, expressed as a fraction, where S is the mean species richness of a type.’
homoteneity(comm,clustering)
comm |
a data.frame of species abundances with samples as rows and species as columns |
clustering |
a vector of (integer) class memberships, or an object of
class ‘clustering’, class ‘partana’,
or class |
A data.frame of homoteneity values
This function was adapted from the Virginia Heritage Program at
http://www.dcr.virginia.gov/natural_heritage/ncstatistics.shtml
data(bryceveg) # returns a data.frame of species in sample plots
data(brycesite) # returns a data.frame of site variables
homoteneity(bryceveg,brycesite$quad) # analysis of species constancy
# by USGS quad locationPlease choose more modern alternatives, such as Google Chrome or Mozilla Firefox.