bit_in: bit %in%

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

bit %in%

Description

fast %in% for integers

Usage

bit_in(x, table, retFUN = as.bit)

Arguments

x	an integer vector of values to be looked-up
table	an integer vector used as lookup-table
retFUN	a function that coerces bit() and logical() vectors

Details

determines the range of the integers and checks if the density justifies use of a bit vector; if yes, maps x or table – whatever is smaller – into a bit vector and searches the other of table or x in the it vector; if no, falls back to %in%

Value

a boolean vector coerced to retFUN

See Also

%in%

Examples

bit_in(1:2, 2:3)
bit_in(1:2, 2:3, retFUN=as.logical)

bit documentation built on April 4, 2025, 3:09 a.m.