Fully documented, tested on two projects now. The package is useful for calculating the Phi Coefficient of Association. The Phi coefficient is a measure of site fidelity or habitat association. The current package offers an improved habitat/group weighted version of the Phi Coefficient presented by De Cáceres and Legendre’s (2009). The improvements are published in Chetcuti et al. (2019).

{"references": ["Chetcuti, J., Kunin, W.E. and Bullock, J.M. 2019. A weighting method to improve habitat association analysis: tested on British carabids. Ecography. 42(8), pp.1395\u20131404.", "De C\u00e1ceres, M., & Legendre, P. (2009). Associations between species and groups of sites: indices and statistical inference. Ecology, 90(12), 3566\u20133574."]}

This version now has a weighted version of IndVal and a torroidal version of permutation useful when looking at spatially auto-correlated data.