Fig. 4: Testing accuracy as a function of the confidence threshold.

a Testing accuracy and indeterminate percentage for the 4-class HER2 classification system with 3N samples. b Testing accuracy and indeterminate percentage for the 4-class HER2 classification system with the highest CI. c Testing accuracy and indeterminate percentage for the 4-class system with the CI-weighted method. d Testing accuracy vs. indeterminate percentage for the 2-class system with 3N samples. e Testing accuracy and indeterminate percentage for the 2-class system with the highest CI. f Testing accuracy and indeterminate percentage for the 2-class system with the CI-weighted method. Gray dashed lines refer to a 15% indeterminate rate.