fastLISA contains statistical kernels adapted from the GeoDa/libgeoda project.

GeoDa/libgeoda
Copyright (C) 2011-2015 Luc Anselin
Copyright (C) GeoDa contributors
License: GNU General Public License version 3 or later
Source: https://github.com/GeoDaCenter/geoda

The adapted conventions cover Local Moran, bivariate Local Moran, Empirical
Bayes Local Moran, Local Geary, multivariate Local Geary, Local G, Local G*,
conditional permutation tails, and cluster classifications. The fastLISA
implementations are written in C for the package's CSR and OpenMP backend.

The xoshiro256++ and SplitMix64 random-number generators are adapted from the
public-domain reference implementations by David Blackman and Sebastiano Vigna:
https://prng.di.unimi.it/