Threshold One Half Counts - Precision and Recall, Exactly

Count the confusion cells at threshold one half.

highlighted = computed this step

Place threshold one half

At threshold 1/2, rows A, B, and C are on or above the marker.

t=1/2

The grid is TP=2, FP=1, FN=1, TN=1.

(TP,FP,FN,TN)=(2,1,1,1)

The same panel shows the score line, row outputs, and the exact confusion counts.

\text{threshold panel is one exact count source}