range_sortna: Prepare for sorting and get range, number of NAs and...

In bit: Classes and Methods for Fast Memory-Efficient Boolean Selections

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

See Also

range_na and range_nanozero

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 documentation built on Sept. 20, 2024, 5:08 p.m.