Changes in version 1.4.0                        

    o   The {rgl} package dependency has been dropped due to complications generated by it on various operating system. The package functionalities were used in the generic plcm2D plots. Now the plots are done in base R.

                 Changes in version 1.1.5 (2019-12-11)                  

    o   Adapt the code to the change in R 4.0.0 where matrix objects now also inherit from class "array". 

                        Changes in version 1.1.4                        

    o   New LICENCE;

    o   Add more validation filters in order to avoid errors generated by 
	inappropriate input.

                 Changes in version 1.1.0 (2018-09-30)                  

    o   Update following the JOSS reviewing process here
	<https://github.com/openjournals/joss-reviews/issues/936>
	and here <https://github.com/openjournals/joss-reviews/issues/937>;

    o   Fix the 3D plot for "ungrouped" mortality surface;

    o   Add the CITATION file.

                 Changes in version 1.0.0 (2018-09-03)                  

    o   First stable version on CRAN