multimap-class {datastructures} | R Documentation |
Implementation of a multimap data structure, i.e. an unordered collection of key-value pairs:
f: keys -> values.
Multimaps are able to store several identical keys. For a data structure
which unique keys, see hashmap
.
Inserting and accessing is amortized in O(1).
hashmap
wraps a C++ unordered_multimap
using Rcpp modules.
Also see bimap
for mappings in both ways.
.map
C++
object representing a mapping
.key.class
the class of the keys
multimap
for creating a new multimap
object