Data.table: fcase() could do vectorized switch on character first input

[MichaelChirico]

A cool feature of SQL CASE WHEN is

  CASE x
    WHEN 1 then '1'
    WHEN 2 then '2'
    ELSE '>2'
  END as switched_case

It would be nice to mimic this in fcase:

fcase(
  x,
  1, '1',
  2, '2',
  default = '>2'
)

[shrektan]

maybe it should be a seprated function fswitch()

[2005m]

@shrektan , is that different from kit::nswitch you asked for ?

[shrektan]

no but just data.table should have no dependencies and if we add in data.table we may should choose to implement it as a wrapper of fcase.