Virtual Classes Not Yet Really Implemented and Used

iMatrix is the virtual class of all integer (S4) matrices. It extends the Matrix class directly.

zMatrix is the virtual class of all complex (S4) matrices. It extends the Matrix class directly.

Examples

showClass("iMatrix")
#> Virtual Class "iMatrix" [package "Matrix"]
#> 
#> Slots:
#>                                  
#> Name:         x      Dim Dimnames
#> Class:  integer  integer     list
#> 
#> Extends: "Matrix"
showClass("zMatrix")
#> Virtual Class "zMatrix" [package "Matrix"]
#> 
#> Slots:
#>                                  
#> Name:         x      Dim Dimnames
#> Class:  complex  integer     list
#> 
#> Extends: "Matrix"