Changes in version 0.1.0 (2026-04-21)                  

  - Initial CRAN submission.
  - Efficient implementation of several Optimal Transport algorithms in
    Fangzhou Xie (2025) doi:10.48550/arXiv.2504.08722 and the
    Wasserstein Index Generation (WIG) model in Fangzhou Xie (2020)
    doi:10.1016/j.econlet.2019.108874.