func TestWordsCountMissRate(t *testing.T) {
data := []string{"A", "B", "C", "D"}
test := []string{"A", "B", "C", "D"}
repl := []string{"B", "C", "D", "E"}
exps := []float64{0.25, 0.5, 0.75, 1.0}
got, _, _ := tekstus.WordsCountMissRate(data, test)
assert(t, 0.0, got, true)
for x, exp := range exps {
test[x] = repl[x]
got, _, _ = tekstus.WordsCountMissRate(data, test)
assert(t, exp, got, true)
}
}
/*
CountOOBError process out-of-bag data on tree and return error value.
*/
func (runtime *Runtime) CountOOBError(oob tabula.Claset) (
errval float64,
e error,
) {
// save the original target to be compared later.
origTarget := oob.GetClassAsStrings()
if DEBUG >= 2 {
fmt.Println("[cart] OOB:", oob.Columns)
fmt.Println("[cart] TREE:", &runtime.Tree)
}
// reset the target.
oobtarget := oob.GetClassColumn()
oobtarget.ClearValues()
e = runtime.ClassifySet(&oob)
if e != nil {
// set original target values back.
oobtarget.SetValues(origTarget)
return
}
target := oobtarget.ToStringSlice()
if DEBUG >= 2 {
fmt.Println("[cart] original target:", origTarget)
fmt.Println("[cart] classify target:", target)
}
// count how many target value is miss-classified.
runtime.OOBErrVal, _, _ = tekstus.WordsCountMissRate(origTarget, target)
// set original target values back.
oobtarget.SetValues(origTarget)
return runtime.OOBErrVal, nil
}