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

raw_meta_alpha(meta, qs)



object of class metacommunity


vector of mode numeric containing q values


raw_meta_alpha 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 raw metacommunity alpha diversity
raw_meta_alpha(meta, 0:2)
#>     measure q type_level type_name partition_level partition_name diversity
#> 1 raw alpha 0      types             metacommunity                 4.000000
#> 2 raw alpha 1      types             metacommunity                 3.464102
#> 3 raw alpha 2      types             metacommunity                 3.000000
#>   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