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tnr_ using same cutoff as confusionMatrix_ #33

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tnr_ using same cutoff as confusionMatrix_ #33

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5 changes: 2 additions & 3 deletions src/confusionMatrix_.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -54,10 +54,9 @@ double npv_(NumericVector actual, NumericVector predicted, double cutoff) {
// [[Rcpp::export]]
double tnr_(NumericVector actual, NumericVector predicted, double cutoff) {

double TN = sum((predicted < cutoff) & (actual == 0));
double N = sum(actual == 0);
double tnr = TN/N;
NumericMatrix cMat = confusionMatrix_(actual, predicted, cutoff);

double tnr = cMat(0,0) / (cMat(0,0) + cMat(1,0));
return tnr;

}
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