def recall.go

mlbend-metrics@0.1.0.0 · main.bend:272

import Base

272# the fraction of the samples really k that are predicted as k: the
273# recall of the class k
274def recall.go(r: Result<&1, &1, Bad, Nat>, +ys: List<&2, Nat>, +ps: List<&2, Nat>, +k: Nat) -> Result<&1, &1, Bad, F32>:
275  match r:
276    case Done{n}:
277      Done{ratio(count_both(ys, ps, k), count_true(ys, k))}
278    case Fail{Mismatch{expected, got}}:
279      Fail{Mismatch{expected, got}}
280    case Fail{Empty{}}:
281      Fail{Empty{}}