bit: range_sortna – R documentation

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range_sortna

Prepare for sorting and get range, number of NAs and unsortedness

Description

In one pass over the vector NAs are treated according to parameter na.last exactly like sort does, the range, number of NAs and unsortedness is determined.

Usage

range_sortna(x, decreasing = FALSE, na.last = NA)

Arguments

`x`	an integer vector
`decreasing`	(currently only `FALSE` is supported)
`na.last`	`NA` removes NAs, `FALSE` puts NAs at the beginning, `TRUE` puts NAs at the end

Value

an integer vector with NAs are treated and an attribute range_na with four elements

1: min integer
2: max integer
3: number of NAs
3: 0 for sorted vector and 1 for is.unsorted

Examples

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