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rlepack

Hybrid Index, rle-pack utilities

Description

Basic utilities for rle packing and unpacking and apropriate methods for rev and unique.

Usage

rlepack(x, ...)

## S3 method for class 'integer'
rlepack(x, pack = TRUE, ...)

rleunpack(x)

## S3 method for class 'rlepack'
rleunpack(x)

## S3 method for class 'rlepack'
rev(x)

## S3 method for class 'rlepack'
unique(x, incomparables = FALSE, ...)

## S3 method for class 'rlepack'
anyDuplicated(x, incomparables = FALSE, ...)

Arguments

`x`	in 'rlepack' an integer vector, in the other functions an object of class 'rlepack'
`...`	just to keep R CMD CHECK quiet (not used)
`pack`	FALSE to suppress packing
`incomparables`	just to keep R CMD CHECK quiet (not used)

Value

A list with components

`first`	the first element of the packed sequence
`dat`	either an object of class `rle` or the complete input vector `x` if rle-packing is not efficient
`last`	the last element of the packed sequence

Author(s)

Jens Oehlschlägel

Examples

x <- rlepack(rep(0L, 10))

bit

Classes and Methods for Fast Memory-Efficient Boolean Selections

v4.0.4

GPL-2 | GPL-3

Authors

Jens Oehlschlägel [aut, cre], Brian Ripley [ctb]

Initial release

2020-08-03