| OrderedDict {collections} | R Documentation |
The OrderedDict function creates an ordered dictionary.
OrderedDict(items = NULL)
items |
a list of items |
Following methods are exposed:
.$set(key, value) .$get(key, default) .$remove(key) .$pop(key, default) .$popitem(last = TRUE) .$has(key) .$keys() .$values() .$update(d) .$clear() .$size() .$as_list() .$print()
key: any R object, key of the item
value: any R object, value of the item
default: optinal, the default value of an item if the key is not found
d: an OrderedDict or OrderedDictL
Dict and OrderedDictL
d <- OrderedDict(list(apple = 5, orange = 10))
d$set("banana", 3)
d$get("apple")
d$as_list() # the order the item is preserved
d$pop("orange")
d$as_list() # "orange" is removed
d$set("orange", 3)$set("pear", 7) # chain methods