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Table 1 Results from two-level nested cross-validation

From: A genome-wide DNA methylation study in colorectal carcinoma

No. of variables in KNN model Expected test characteristics in another set of data
  Accuracy SEN (%) SPEC (%) PPV (%) NPV (%)
4 variables 94.44 91.67 95.83 95.65 92.00
6 variables 92.36 87.50 95.83 95.45 88.46
8 variables 92.36 87.50 95.83 95.45 88.46
10 variables 92.36 87.50 95.83 95.45 88.46
21 variables 93.05 89.58 95.83 95.56 90.20
31 variables 92.36 87.50 95.83 95.45 88.46
41 variables 92.36 89.58 95.83 95.56 90.20
51 variables 93.06 89.58 95.83 95.56 90.20
  1. K-Nearest Neighborhood model with Euclidean distance measure & 3 neighbor was used; SEN: sensitivity; SPEC: specificity; PPV: Positive Predictive Value; NPV: Negative Predictive Value.