'LiNGAM' Algorithms for Causal Discovery // R implementation of 'LiNGAM' (Linear Non-Gaussian Acyclic Model) algorithms for causal discovery, following Shimizu et al. (2011) https://www.jmlr.org/papers/v12/shimizu11a.html. Based on the 'Python' implementation by Ikeuchi et al. (2023) https://github.com/cdt15/lingam. The 'VAR-LiNGAM' residual diagnostics are inspired by the 'VARLiNGAM' R code of Moneta et al. https://sites.google.com/site/dorisentner/publications/VARL iNGAM.