like

0th

Percentile

Convenience function for calling regexpr.

Intended for use in data.table i clause 'where'.

Keywords
data
Usage
like(vector,pattern)
vector
Arguments
vector
Either a character vector or a factor. A factor is faster (as you must have in a data.table).
pattern
Passed on to regexpr.
Value

  • Integer vector containing the locations of vector which match the pattern using regexpr.

Note

Current implementation does not make use of sorted keys.

See Also

data.table, regexpr

Aliases
  • like
  • %like%
Examples
DT = data.table(Name=c("Mary","George","Martha"), Salary=c(2,3,4))
    DT[Name %like% "^Mar"]   # select from DT where Name like 'Mar'
Documentation reproduced from package data.table, version 1.4.1, License: GPL

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