Changes in version 0.4.1 (2025-04-18)                  

Enhancements:

  - Improved convergence speed of the backfitting algorithm, requiring
    fewer iterations to reach a critical solution.

Changes:

  - Fixed bugs related to the ‘omegaGrid’ and ‘omegaMin’ arguments.

  - Internal functions for better structure and maintainability:
    
      - mobius() function needed for the backfitting algorithm.
      - Introduced calculateDesignMatrix() and calculateSingleCosPhi()
        for cleaner and more efficient code.

                 Changes in version 0.4.0 (2025-03-01)                  

Enhancements:

  - Improved computational efficiency: The grid search has been
    optimized to avoid redundant calculations, and a profile likelihood
    approach has been incorporated into the post-optimization procedure.
    These refinements lead to a more efficient convergence, reducing the
    need for explicit parallelization (parallelize argument) and
    iterative grid refinement (numReps argument).

  - Refinements in plotFMM(): Bug fixes and improvements in prediction
    computation, now performed on a denser, evenly spaced grid in
    addition to the original time points.

  - Code simplifications: The arguments numReps and parallelize have
    been deprecated, and the default value of showProgress has been
    changed from TRUE to FALSE.

New features:

  - Additional arguments in fitFMM(): New arguments omegaMin, omegaMax,
    and omegaGrid have been added to provide more flexibility.

  - New warnings messages: Additional warnings notify users about
    excessively large amplitude estimates and significant gaps in time
    points.

Changes:

  - Repository update: The GitHub repository link in DESCRIPTION has
    been updated to FMMGroupVa/FMM.

  - Vignette updates: The vignette has been revised to align with the
    latest modifications.

  - Internal functions restructuring:
    
      - Functions bestStep1() and getApply() have been relocated from
        FMM_internal to FMM_internal_restr.
      - The previous version of step1FMM() has been renamed
        step1FMMRestr() and moved to FMM_internal_restr.
      - Two new internal functions, checkArguments() and
        checkSolution(), have been introduced to improve input
        validation and ensure the correctness of computed results.

                 Changes in version 0.3.1 (2021-12-17)                  

Minor improvements and fixes:

  - A vignette has been added.
  - The default value of the argument showTime of fitFMM() function has
    been changed to FALSE.
  - R2() and alwaysFalse() functions are listed in NAMESPACE file.
  - A link to the GitHub repository has been added to DESCRIPTION file.
  - An example for plotting the original time scale on the x-axis of the
    ggplots has been added to the documentation of the plotFMM()
    function.
  - Add automated unit tests for fitFMM() function.
  - fitFMM() prints informative error messages when the number of
    observation is insufficient or data are constant.

                 Changes in version 0.3.0 (2021-07-26)                  

Enhancements:

  - Optimization of the estimation procedure for the monocomponent,
    multicomponent and restricted FMM models. An embedded parallelized
    procedure is available for all the models for faster estimations.
  - Code has been refined: it is now more object-oriented, code
    duplicity has been reduced, unnecessary orders have been suppressed,
    API usability has been improved, and the documentation is now
    automatically created with roxygen2.

New features:

  - In addition to the estimation by blocks previously available for the
    restricted model, an exact implementation has been added for more
    accurate fits in expense of more computational time.

                        Changes in version 0.2.0                        

New features:

  - Optimized monocomponent and multicomponent model computation.

                 Changes in version 0.1.2 (2021-03-01)                  

Enhancements:

  - Added a slot in the FMM object with information on the number of
    iteraction of the fitting process.
  - Renamed the FMMPeaks function to getFMMPeaks.
  - Renamed the generate_FMM function to generateFMM. Also parameters a,
    b and w to alpha, beta and omega, respectively.

New features:

  - New show() method to print basic information on an FMM object.

                 Changes in version 0.1.1 (2021-01-22)                  

Fixed the issues pointed out in the review of the CRAN submission:

  - Modified the beginning of the description.
  - Added details about internal functions in the documentation.
  - Replaced the use of cat() by warning().
  - options(warn=-1) is no longer used.
  - No example in the documentation of the functions uses more than two
    processor cores.

                        Changes in version 0.1.0                        

  - Submitted version 0.1.0 to CRAN.