divc {ade4} | R Documentation |
Calculates Rao's diversity coefficient within samples.
divc(df, dis)
df |
a data frame with elements as rows, samples as columns, and abundance, presence-absence or frequencies as entries |
dis |
an object of class dist containing distances or dissimilarities among elements.
If dis is NULL, Gini-Simpson index is performed. |
Returns a data frame with samples as rows and the diversity coefficient within samples as column
Sandrine Pavoine pavoine@biomserv.univ-lyon1.fr
Rao, C.R. (1982) Diversity and dissimilarity coefficients: a unified approach. Theoretical Population Biology, 21, 24–43.
Gini, C. (1912) Variabilitá e mutabilitá. Universite di Cagliari III, Parte II.
Simpson, E.H. (1949) Measurement of diversity. Nature, 163, 688.
data(humDNAm) divc(humDNAm$samples, sqrt(humDNAm$distances)) ## Not run: data(ecomor) ecomor.phylog <- taxo2phylog(ecomor$taxo) divc(ecomor$habitat, ecomor.phylog$Wdist) ## End(Not run)