Changes in version 1.1.0 (2025-06-01)                  

  - Added distribution parameter to the confidence_ellipse() and
    confidence_ellipsoid functions allowing users to choose between
    "normal" and "hotelling" (Hotelling's T²) distributions for ellipse
    calculation.
  - Enhanced statistical rigor: Hotelling's T² distribution now properly
    accounts for parameter estimation uncertainty in small sample sizes.
  - Updated documentation with detailed explanations of distribution
    choices and robust methods.
  - Added recommendations for parameter selection based on sample size
    and data characteristics.
  - Change name of transform_data helper function to transform_2d and
    transform_3d for clarity and consistency.

                 Changes in version 1.0.0 (2024-04-22)                  

  - Added robust parameter to the confidence_ellipse() and
    confidence_ellipsoid functions enabling robust estimation methods
    using 1-step M-estimator with biweight psi function for location and
    Minimum Covariance Determinant (MCD) estimator for scale.
  - Improved handling of outliers and non-normal data through robust
    estimation options.
  - Enhanced documentation with examples demonstrating the use of robust
    methods.
  - CRAN release with comprehensive vignettes and examples.

                        Changes in version 0.2.1                        

  - Improved code of transform_data helper function.

                        Changes in version 0.2.0                        

  - Added transform_data helper function to streamline data
    transformation processes.

                        Changes in version 0.1.4                        

  - Modified package logo to include a more visually appealing design.
  - Updated package description to better reflect the functionality and
    features of the package.

                        Changes in version 0.1.3                        

  - Cleaned up code and improved performance of confidence_ellipse() and
    confidence_ellipsoid() functions.

                        Changes in version 0.1.2                        

  - Introduced confidence_ellipse() function for 2D confidence ellipse
    calculations.
  - Introduced confidence_ellipsoid() function for 3D confidence
    ellipsoid calculations.

                        Changes in version 0.1.1                        

  - Fixed bug in confidence_ellipse() function where the conf_level
    parameter was not being correctly applied.

                        Changes in version 0.1.0                        

  - Initial release of the ConfidenceEllipse package.