like: Convenience function for calling regexpr.

In data.table: Extension of data.frame

Description

Intended for use in [.data.table i.

Usage

like(vector,pattern)
vector 

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"]

Example output

     Name Salary
1:   Mary      2
2: Martha      4

data.table documentation built on May 2, 2019, 4:57 p.m.