Changes in version 1.2.0 (2026-03-25)                  

New functions

  - fitpgam() and related functions added to fit a log-additive model
    over two time scales.
  - fitvcm() and related functions added to fit a varying-coefficient
    model over two time scales.
  - select_model2ts() added to compare several fitted models and
    identify the best-fitting one.
  - make_grid() facilitates the creation of a new plotting grid.

Tests

  - Added unit tests for prepare_data(), fit1ts(), and fit2ts().

                        Changes in version 1.1.1                        

Updates

  - predict.haz2ts() can now predict also including covariates fixed at
    arbitrary values

  - GLAM_2d_covariates() returns covariances between the alpha and beta
    parameters

  - All functions that use ucminf to minimize the AIC/BIC of the model
    wrt the smoothing parameter(s) now have a smaller value for the
    option xtol. Additionally, it can also be changed in the control
    lists.

  - Fixed a small typo in plot_haz1ts() that did not allow to plot
    confidence intervals in color specified by user.

  - Fixed problem with variable names in prepare_data_LMMsolver()

  - print.data2ts() now prints rounded values for total exposure time

                        Changes in version 1.1.0                        

New functions

  - predict.haz2ts() method added to objects of class 'haz2ts'. It
    allows prediction of the hazard, its standard errors, the cumulative
    hazard and the survival probability, from a fitted model of type
    'haz2ts', for arbitrary values of the time scales. It can also be
    used to obtain individual predictions for the original data points.

  - predict_comprisk2ts() allows prediction for competing risks models.
    It takes as input a list of cause-specific hazard models over two
    time scales, all fitted with fit2ts(), on the same grid, and a new
    data.frame with values of the two time scales for which predictions
    are requested.

Minor changes

  - DESCRIPTION has been updated, to correct a small typo.

                 Changes in version 1.0.0 (2024-12-23)                  

  - Initial CRAN submission.