Changes in version 0.2.3 (2023-08-17)                  

  - Deprecated functions were removed from the package.

  - Several examples were modified slightly to make them run more
    quickly.

                 Changes in version 0.2.2 (2023-08-09)                  

  - Several new data sets have been added.

  - Several references were updated.

                 Changes in version 0.2.1 (2022-05-29)                  

  - Many functions have been renamed. Old function names have been
    deprecated.

  - Limited support for time-varying covariates in multivariate Cox
    models has been added.