Calculates similarity-sensitive metacommunity gamma diversity (the metacommunity similarity-sensitive diversity). This measure may be calculated for a series of orders, represented as a vector of qs.

meta_gamma(meta, qs)



object of class metacommunity


vector of mode numeric containing q values


meta_gamma returns a standard output of class rdiv


R. Reeve, T. Leinster, C. Cobbold, J. Thompson, N. Brummitt, S. Mitchell, and L. Matthews. 2016. How to partition diversity. arXiv 1404.6520v3:1–9.


pop <- data.frame(a = c(1,3), b = c(1,1))
row.names(pop) <- paste0("sp", 1:2)
pop <- pop/sum(pop)
meta <- metacommunity(pop)

# Calculate metacommunity gamma diversity
meta_gamma(meta, 0:2)
#>   measure q type_level type_name partition_level partition_name diversity
#> 1   gamma 0      types             metacommunity                 2.000000
#> 2   gamma 1      types             metacommunity                 1.889882
#> 3   gamma 2      types             metacommunity                 1.800000
#>   dat_id transformation normalised  k max_d
#> 1  naive             NA         NA NA    NA
#> 2  naive             NA         NA NA    NA
#> 3  naive             NA         NA NA    NA