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bit64 (version 0.9-7)

A S3 Class for Vectors of 64bit Integers

Description

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.

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Version

Install

install.packages('bit64')

Monthly Downloads

677,013

Version

0.9-7

License

GPL-2

Maintainer

Jens Oehlschl�gel

Last Published

May 8th, 2017

Functions in bit64 (0.9-7)

as.character.integer64

Coerce from integer64
benchmark64

Function for measuring algorithmic performance of high-level and low-level integer64 functions
benchmark64.data

Results of performance measurement on a Core i7 Lenovo T410 8 GB RAM under Windows 7 64bit
c.integer64

Concatenating integer64 vectors
as.integer64.character

Coerce to integer64
as.data.frame.integer64

integer64: Coercing to data.frame column
cumsum.integer64

Cumulative Sums, Products, Extremes and lagged differences
cache

Atomic Caching
bit64S3

Tunrning base R functions into S3 generics for bit64
format.integer64

Unary operators and functions for integer64 vectors
bit64-package

A S3 class for vectors of 64bit integers
is.sorted.integer64

Small cache access methods
match.integer64

64-bit integer matching
hashcache

Big caching of hashing, sorting, ordering
duplicated.integer64

Determine Duplicate Elements of integer64
keypos

Extract Positions in redundant dimension table
hashmap

Hashing for 64bit integers
optimizer64.data

Results of performance measurement on a Core i7 Lenovo T410 8 GB RAM under Windows 7 64bit
plusclass

integer64: Maintaining S3 class attribute
rank.integer64

Sample Ranks from integer64
unipos

Extract Positions of Unique Elements
identical.integer64

Identity function for class 'integer64'
ramsort.integer64

Low-level intger64 methods for in-RAM sorting and ordering
extract.replace.integer64

Extract or Replace Parts of an integer64 vector
qtile

(Q)uan(Tile)s
rep.integer64

Replicate elements of integer64 vectors
unique.integer64

Extract Unique Elements from integer64
seq.integer64

integer64: Sequence Generation
xor.integer64

Binary operators for integer64 vectors
sortnut

Searching and other uses of sorting for 64bit integers
sum.integer64

Summary functions for integer64 vectors
table.integer64

Cross Tabulation and Table Creation for integer64
tiepos

Extract Positions of Tied Elements
sort.integer64

High-level intger64 methods for sorting and ordering
prank

(P)ercent (Rank)s