Changes in version 0.1.5 (2025-06-17)                  

    o   fixed some bugs

                 Changes in version 0.1.4 (2025-02-12)                  

    o   fixed some bugs

                 Changes in version 0.1.3 (2024-11-05)                  

    o   improve the optimization

    o   fixed some bugs

                 Changes in version 0.1.2 (2024-10-17)                  

    o   fixed some bugs

                 Changes in version 0.1.1 (2024-06-05)                  

    o   fixed some bugs

                 Changes in version 0.1.0 (2023-07-08)                  

    o   fixed some bugs

    o   implements univariate control charts

                        Changes in version 0.0.6                        

    o   fixed some bugs

                        Changes in version 0.0.5                        

    o   fixed some bugs

    o   summary function is simplified

    o   S3 functions (summary, plot) are registered

                        Changes in version 0.0.4                        

    o   fixed some bugs

    o   summary function is specified

    o   t2unc sample data is specified

                        Changes in version 0.0.3                        

    o   fixed some bugs

    o   plot function is specified

                        Changes in version 0.0.2                        

    o   package release on GitHub.