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r-lib
bit64:A S3 Class for Vectors of 64bit Integers
Package 'bit64' provides serializable S3 atomic 64bit (signed) integers. These are useful for handling database keys and exact counting in +-2^63. WARNING: do not use them as replacement for 32bit integers, integer64 are not supported for subscripting by R-core and they have different semantics when combined with double, e.g. integer64 + double => integer64. Class integer64 can be used in vectors, matrices, arrays and data.frames. Methods are available for coercion from and to logicals, integers, doubles, characters and factors as well as many elementwise and summary functions. Many fast algorithmic operations such as 'match' and 'order' support inter- active data exploration and manipulation and optionally leverage caching.
Maintained by Michael Chirico. Last updated 19 days ago.
5.6 match 35 stars 14.91 score 1.5k scripts 3.2k dependents
vgherard
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.
Maintained by Valerio Gherardi. Last updated 5 months ago.
9.1 match 3 stars 7.36 score 82 scripts 28 dependents
dselivanov
sparsepp:'Rcpp' Interface to 'sparsepp'
Provides interface to 'sparsepp' - fast, memory efficient hash map. It is derived from Google's excellent 'sparsehash' implementation. We believe 'sparsepp' provides an unparalleled combination of performance and memory usage, and will outperform your compiler's unordered_map on both counts. Only Google's 'dense_hash_map' is consistently faster, at the cost of much greater memory usage (especially when the final size of the map is not known in advance).
Maintained by Dmitriy Selivanov. Last updated 7 years ago.
hashmapheader-onlyrcppsparsepp
11.0 match 11 stars 4.04 score 2 scripts
mikldk
malan:MAle Lineage ANalysis
MAle Lineage ANalysis by simulating genealogies backwards and imposing short tandem repeats (STR) mutations forwards. Intended for forensic Y chromosomal STR (Y-STR) haplotype analyses. Numerous analyses are possible, e.g. number of matches and meiotic distance to matches. Refer to papers mentioned in citation("malan") (DOI's: <doi:10.1371/journal.pgen.1007028>, <doi:10.21105/joss.00684> and <doi:10.1016/j.fsigen.2018.10.004>).
Maintained by Mikkel Meyer Andersen. Last updated 1 years ago.
5.6 match 4.48 score 6 scripts
bernd-mueller
epos:Epilepsy Ontologies' Similarities
Analysis and visualization of similarities between epilepsy ontologies based on text mining results by comparing ranked lists of co-occurring drug terms in the BioASQ corpus. The ranked result lists of neurological drug terms co-occurring with terms from the epilepsy ontologies EpSO, ESSO, EPILONT, EPISEM and FENICS undergo further analysis. The source data to create the ranked lists of drug names is produced using the text mining workflows described in Mueller, Bernd and Hagelstein, Alexandra (2016) <doi:10.4126/FRL01-006408558>, Mueller, Bernd et al. (2017) <doi:10.1007/978-3-319-58694-6_22>, Mueller, Bernd and Rebholz-Schuhmann, Dietrich (2020) <doi:10.1007/978-3-030-43887-6_52>, and Mueller, Bernd et al. (2022) <doi:10.1186/s13326-021-00258-w>.
Maintained by Bernd Mueller. Last updated 1 years ago.
5.0 match 4.03 score 53 scripts
crowding
memo:In-Memory Caching of Repeated Computations (Memoization)
A simple in-memory, LRU cache that can be wrapped around any function to memoize it. The cache is keyed on a hash of the input data (using 'digest') or on pointer equivalence.
Maintained by Peter Meilstrup. Last updated 1 years ago.
3.3 match 13 stars 5.26 score 28 scripts
traversc
seqtrie:Radix Tree and Trie-Based String Distances
A collection of Radix Tree and Trie algorithms for finding similar sequences and calculating sequence distances (Levenshtein and other distance metrics). This work was inspired by a trie implementation in Python: "Fast and Easy Levenshtein distance using a Trie." Hanov (2011) <https://stevehanov.ca/blog/index.php?id=114>.
Maintained by Travers Ching. Last updated 30 days ago.
1.6 match 8 stars 4.90 score 9 scripts