Package: r2r 0.1.1

Valerio Gherardi

r2r: R-Object to R-Object Hash Maps

Implementation of hash tables (hash sets and hash maps) in R, featuring arbitrary R objects as keys, arbitrary hash and key-comparison functions, and customizable behaviour upon queries of missing keys.

Authors:Valerio Gherardi [aut, cre]

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r2r/json (API)

# Install 'r2r' in R:

install.packages('r2r', repos = c('https://vgherard.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/vgherard/r2r/issues

On CRAN:

data-structures hashtable

16 exports 3 stars 3.81 score 2 dependencies 27 dependents 396 downloads

Last updated 3 years agofrom:d9679b0907 (on v0.1.1)

Exports:%has_key%compare_fn default default_hash_fn default<-delete has_key hash_fn hashmap hashset insert keys on_missing_key on_missing_key<-query values

Dependencies:digest rlang

Comparison with {hash}

Rendered frombenchmarks.Rmdusingknitr::rmarkdownon Jul 19 2024.

Last update: 2021-07-02
Started: 2021-07-02

R-Object to R-Object Hash Maps

Rendered fromr2r.Rmdusingknitr::rmarkdownon Jul 19 2024.

Last update: 2021-07-02
Started: 2021-07-01

Citation

Development and contributors

Readme and manuals

Help Manual

Help page	Topics
Get key comparison function of an hash table	compare_fn compare_fn.r2r_hashtable
Default 'hashmap' values	default default.r2r_hashmap default<- default<-.r2r_hashmap
String hashes for arbitrary R objects	default_hash_fn
Delete keys or key/value pairs from an hash table.	delete delete.r2r_hashmap delete.r2r_hashset
Key existence in hash tables	%has_key% has_key has_key.r2r_hashmap has_key.r2r_hashset
Get hash function of an hash table	hash_fn hash_fn.r2r_hashtable
Hash maps and sets	hashmap hashset hashtable
Methods for S3 classes 'hashmap' and 'hashset'	hashtable_methods
Insert keys or key/value pairs into an hash table.	insert insert.r2r_hashmap insert.r2r_hashset
List all keys from an hash table	keys keys.r2r_hashtable
Size of hash tables	length.r2r_hashtable
On missing key behaviour	on_missing_key on_missing_key.r2r_hashmap on_missing_key<- on_missing_key<-.r2r_hashmap
Query keys from an hash table.	query query.r2r_hashmap query.r2r_hashset
Subsetting 'hashset's and 'hashmap's	subsetting_hashtables [.r2r_hashmap [.r2r_hashset [<-.r2r_hashmap [<-.r2r_hashset [[.r2r_hashmap [[.r2r_hashset [[<-.r2r_hashmap [[<-.r2r_hashset
List all values from an hash map	values values.r2r_hashmap