Changes in version 0.3 (2024-02-06)                   

CHANGES

  - Change of License: Starting with version 0.3, the rsae package is
    distributed under the GPLv3 license (before it was released under
    the BSD-3-Clause license).
  - For root finding, we now use the Fortran 90 routine zero_rc of John
    Burkardt (license: Lesser GPL).

FIXES

  - Fixed Fortran compiler warnings and issues in the code
  - Updated and added examples in the help documentation
  - Fixed colnames of the return value of as.matrix.saemodel() and other
    (minor) issues in the R code.

NEW FEATURES

  - Added the utility functions head(), tail(), and as.matrix() to work
    with the predicted values (and the mean square prediction error).
  - Added data.frame landsat_means which contains the county-specific
    means of, respectively, pixels of the segments under corn and
    soybeans (LANDSAT readings).

                  Changes in version 0.2 (2022-05-24)                   

BUG FIXES

  - Fixed name space issues
  - Fixed DESCRIPTION file
  - The call of require() in function .initmethod() has been replaced
    with requireNamespace() in order to load functions from the
    robustbase package.

CHANGES

  - Function fitsaemodel()
      - It returns now an object of classfit_model_b (in earlier
        versions, the class was called fitsaemodel).
      - If the algorithm does not converge, fitsaemodel() returns an
        object with the slots beta (estimated fixed-effects
        coefficients) and theta (variance components) equal to a vector
        of NA's.
      - The covariance matrix of the fixed effects (vcovbeta) is now
        computed in function summary() and not fitsaemodel(). This goes
        unnoticed by the user.
  - The function coef.fit_model_b() only returns the coefficients but
    does not print to the console anymore.
  - Function fitsaemodel.control() gains the additional argument k_Inf
    to specify the robustness tuning constant k that represents infinity
    (used to define the maximum likelihood estimator)
  - Argument digit of the function print.fit_model_b() depends now on
    getOption("digits").
  - Function summary.fit_model_b() returns now the model summary.
  - Function robpredict()
      - The function gains the additional argument seed to specify the
        random seed used in the parametric bootstrap.
      - The effective number of bootstrap replicates is now returned and
        printed to the console. In earlier package versions, the nominal
        number of replicates was reported, which did not account for
        bootstrap model estimates that failed to converge.
      - The progress bar in function robpredict() is now implemented
        with utils:txtProgressBar() and can be switched off using
        progress_bar = FALSE.
  - The column of ones of the matrix of independent variables (if there
    is an intercept), see slot X of an saemodel instance, is now called
    (Intercept) not X.Intercept .

MISC

  - Updated CITATION file
  - Cleaned documentation and vignette
  - Combined several R source files into one source file and added
    init.c
  - Source repository moved from R-Forge to GitHub

                 Changes in version 0.1-5 (2014-02-13)                  

Added vignette folder

                 Changes in version 0.1-4 (2012-01-08)                  

NEW FEATURES

  - Added status bar for parametric bootstrap
  - Added arguments dec and decor in fitsaemodel.control() to choose
    between different types of decorrelation of the residuals and the
    type of matrix square roots (Cholesky vs. SVD)

MISC

  - Modified documentation
  - Implemented better checks for the robustness tuning constant in the
    internal function .fitsaemodel.huberm()

BUG FIXES

  - Fixed the names of coefficients returned by makedata()
  - Fixed print method fitsaemodel() when different robustness tuning
    are used

                 Changes in version 0.1-3 (2011-07-25)                  

NEW FEATURES

  - Added function convergence() to learn more about the convergence of
    the methods
  - Added argument areameans in function robpredict()
  - Added argument type in plot method for class meanssaemodel

MISC

Removed argument full in the summary method for objects of class
fitmodel

                 Changes in version 0.1-2 (2011-07-23)                  

Initial release