| index-class {Matrix} | R Documentation |
Virtual Class “index” of Index Vectors
Description
Class index is a virtual class designating index vectors,
or “subscripts”, for (possibly named) vectors and arrays.
It is typically used in signatures of methods for the subscript
and subassignment operators, namely [ and [<-.
It is implemented as a union of the atomic vector classes
numeric, logical,
and character.
See Also
[, [-methods, and
[<–methods.
Examples
showClass("index")
[Package Matrix version 1.7-4 Index]