def count_true.go
import mlbend-metrics@0.1.0.0/main.bend as MlbendMetricsimport Base
51# the number of samples whose true label is k
52def count_true.go(ys: List<&2, Nat>, +k: Nat, n: Nat) -> Nat:
53 match ys:
54 case Nil{}:
55 n
56 case Con{y, yt}:
57 count_true.go(yt, k, (n + same(y, k) : Nat))