bit: quicksort3 – R documentation

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quicksort3

Low-level sorting: threeway quicksort

Description

In one pass over the vector NAs are handled according to parameter na.last by range_sortna, then, if the vector is unsorted, threeway quicksort is invoked.

Usage

quicksort3(x, na.last = NA)

Arguments

`x`	an integer vector
`na.last`	`NA` removes NAs, `FALSE` puts NAs at the beginning, `TRUE` puts NAs at the end

Value

a sorted vector

Examples

countsort(c(2L,0L,1L,NA,2L))
countsort(c(2L,0L,1L,NA,2L), na.last=TRUE)
countsort(c(2L,0L,1L,NA,2L), na.last=FALSE)

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