packages        S V S_Old S_New V_Old V_New
 MortalitySmooth   * OK    OK    2.0   2.1  
 pec               * OK    OK    2.0.8 2.1.1
 prodlim           * OK    OK    1.2.1 1.2.9
 SparseGrid      * * <NA>  OK    <NA>  0.8.0
 SpatialTools    * * <NA>  OK    <NA>  0.3.2