data_lower_silesian     The evaluation of tourist attractiveness of
                        Lower Silesian counties
drawIsoquants           draw series of isoquants
findOptimalSmacofSym    Selecting the optimal multidimensional scaling
                        (MDS) procedure
optSmacofSymInterval    Selecting the optimal multidimensional scaling
                        procedure for interval-valued data
optSmacofSym_mMDS       Selecting the optimal multidimensional scaling
                        procedure - metric MDS
optSmacofSym_nMDS       Selecting the optimal multidimensional scaling
                        procedure - nonmetric MDS
rotation2dAnimation     Cretaes video by FFmpeg with animation of
                        dataset rotated
