like {data.table}R Documentation

Convenience function for calling regexpr.

Description

Intended for use in i in [.data.table.

Usage

like(vector,pattern)
vector %like% pattern

Arguments

vector

Either a character vector or a factor. A factor is faster.

pattern

Passed on to grepl.

Value

Logical vector, TRUE for items that match pattern.

Note

Current implementation does not make use of sorted keys.

See Also

data.table, grepl

Examples

DT = data.table(Name=c("Mary","George","Martha"), Salary=c(2,3,4))
DT[Name %like% "^Mar"]
[Package data.table version 1.10.4-3 Index]