This package fits the
gambin distribution to species-abundance distributions from ecological data. ‘gambin’ is short for ‘gamma-binomial’. The main functions are
fit_abundances, which estimates the
alpha parameter of the gambin distribution using maximum likelihood, and
mult_abundances which estimates
alpha for multiple sites / samples after standardising for the number of individuals. Recent functions are also provided to generate the gambin distribution and for calculating likelihood statistics. The package now provides functionality to fit multimodal gambin distributions.
The package is currently on CRAN and can be installed via
Alternatively, you can install the developmental version via