Calculate Almeida-Neto and Ulrich's nestedness index
Calculate Almeida-Neto and Ulrich's nestedness index, can handle both abundance and occurrence situations automatically
wnodf(data)
data |
rows of the data are sites, while columns of the data are species |
Youhua Chen <haydi@126.com>
Chen Y (2012) MBI: an R package for calculating multiple-site biodiversity indices. Submitted.
Almeida-Neto M, Ulrich W (2011) A straightforward computational approach for measuring nestedness using quantitative matrices. Environmental Modelling and Software, 26, 173-178.
Almeida-Neto M, Guimaraes P, Guimaraes P, Loyola R, Ulrich W (2008) A consistent metric for nestedness analysis in ecological systems: reconciling concept and measurement. Oikos, 117, 1227-1239.
test<-c(90,30,11,5,100,46,19,70,19,1,
17,0,0,0,30,4,20,26,12,5,37,
0,25,0,60,30,29,42,36,19,32,
12,0,0,50,6,39,35,18,0,35,0,
28,0,70,35,56,49,42,0,81,15,
36,0,90,45,72,63,54,9,13,0,
0,5,20,1,4,0,0,0,0,0,0,0,10,
0,0,0,41,4,72,24,7,0,80,1,64,
56,48,0,36,0,29,0,40,32,32,2,0,0)
test<-matrix(test,10,10)
wnodf(test)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.