Changes in version 1.4.3 (2026-05-05)                  

  - Improved documentation of input types and input checks.

  - Small documentation fixes.

  - Removed renv.

                 Changes in version 1.4.2 (2025-03-24)                  

  - Let download_data() fail gracefully with an informative message if
    the Yahoo Finance resource is not available or has changed.

  - Restored test coverage via codecov.io.

  - Fixed invalid URLs.

                 Changes in version 1.4.1 (2024-09-16)                  

  - Removed stale import of oeli::check_date().

  - Updated download_data() to work with the new Yahoo Finance API.

                 Changes in version 1.4.0 (2024-08-26)                  

  - Fixed a bug around the period control (#93, thanks to @dongsen86).

  - Fixed date conversion to character() (thanks to Hee-Young Kim).

                 Changes in version 1.3.1 (2024-05-31)                  

  - Added citation to JSS paper in DESCRIPTION.

                 Changes in version 1.3.0 (2024-04-30)                  

  - Improved initialization of the numerical likelihood optimization.

  - Now the states after model estimation are automatically ordered
    according to the estimated mean of the state-dependent
    distributions, see reorder_states() with the new (default) option
    state_order = "mean".

  - Re-fitted the example models contained in the package.

                 Changes in version 1.2.2 (2024-02-24)                  

  - Added examples to fit_model().

  - Small code improvements in file ll.cpp.

                 Changes in version 1.2.1 (2024-01-15)                  

  - Small bug fix when computing the stationary distribution.

                 Changes in version 1.2.0 (2023-12-13)                  

  - Controls can now be provided separately for the set_controls()
    function.

  - The arguments in fHMM_parameters() for model parameters were
    slightly renamed as follows:
    
      - mus -> mu
    
      - sigmas -> sigma
    
      - dfs -> df
    
      - Gammas_star -> Gamma_star
    
      - mus_star -> mu_star
    
      - sigmas_star -> sigma_star
    
      - dfs_star -> df_star

  - The log-normal state-dependent distribution is renamed: lnorm ->
    lognormal.

  - Two more state-dependent distributions were added: normal and
    poisson.

  - The Viterbi algorithm can be directly accessed via viterbi().

  - Renamed simulate_data() -> simulate_hmm() to make the functionality
    clearer. Furthermore, this function is now exported and can be used
    outside of the package to simulate HMM data.

  - download_data() no longer saves a .csv-file but returns the data as
    a data.frame. Its verbose argument is removed because the function
    no longer prints any messages.

  - The utilities (i.e., all functions with roxygen tag @keywords utils)
    were moved to the {oeli} package.

                 Changes in version 1.1.1 (2023-10-12)                  

  - Fixed documenting the new special sentinel "_PACKAGE" for the
    package help file, see
    https://github.com/r-lib/roxygen2/issues/1491.

                 Changes in version 1.1.0 (2023-02-14)                  

  - Extended the time horizon of saved data and updated models for
    demonstration.

  - The download_data() function now returns the data as a data.frame by
    default. However, specifying argument file still allows for saving
    the data as a .csv file.

  - The plot.fHMM_model() function now has the additional argument
    ll_relative (default is TRUE) to plot the relative log-likelihood
    values when plot_type = "ll".

  - Significantly increased the test coverage and fixed minor bugs.

  - Changed color of time series plot from "lightgray" to "black" for
    better readability.

  - Added a title to the time series plot when calling
    plot.fHMM_model(plot_type = "ts"). Additionally, a time interval
    with arguments from and to can be selected to zoom into the data.

                 Changes in version 1.0.3 (2022-07-07)                  

  - Added the following methods for an fHMM_model object: AIC(), BIC(),
    logLik(), nobs(), npar(), residuals().

  - The log-normal distribution can now be estimated by setting sdds =
    "lnorm" in the controls object.

                 Changes in version 1.0.2 (2022-05-02)                  

  - Fixed bug in reorder_states() that did not order the fine-scale
    parameter sets when the coarse-scale order was changed.

  - Fixed bug in parameter_labels() that returned the wrong order of
    parameter labels.

  - Changed plot type of simulated data to lines.

                 Changes in version 1.0.1 (2022-04-07)                  

  - In the vignette on controls, in the section about example
    specifications for controls, corrected sdds = "gamma(mu = -1|1)" to
    sdds = "gamma(mu = 0.5|2)" because mean of the Gamma distribution
    must be positive.

  - Added digits argument to print.fHMM_predict().

  - Fixed bug in reorder_states() that allowed for misspecification of
    state_order.

  - Added option to fit_model() to initialize at the estimates of
    another model (#73).

                 Changes in version 1.0.0 (2022-03-14)                  

  - Enhanced the package by S3 classes.

  - Added more controls specifications.

  - Included a prediction function.

  - Improved documentations.

                 Changes in version 0.3.0 (2021-06-16)                  

  - Added vignettes.

  - Improved specification of controls.

  - Fixed minor bugs.

                 Changes in version 0.2.0 (2021-03-13)                  

  - Improved documentation of functions and README.

  - Improved specification of controls. (#37 and #38)

                 Changes in version 0.1.0 (2021-02-22)                  

  - Initial version.