Binary Confusion Matrix
MediumMachine LearningArraySortingMatrix
Description
Given equal-length binary arrays yTrue and yPred (1 = positive), return the counts [TP, FP, FN, TN] in that exact order.
Examples
Input:
yTrue = [1,0,1,1], yPred = [1,1,1,0]Output:
[2,1,1,0]Explanation:
Counting true/false positives and negatives gives [TP, FP, FN, TN] = [2,1,1,0].
Input:
yTrue = [1,1,1], yPred = [1,1,1]Output:
[3,0,0,0]Explanation:
Counting true/false positives and negatives gives [TP, FP, FN, TN] = [3,0,0,0].
Input:
yTrue = [0,0], yPred = [1,0]Output:
[0,1,0,1]Explanation:
Counting true/false positives and negatives gives [TP, FP, FN, TN] = [0,1,0,1].
Constraints
- •
1 ≤ yTrue.length ≤ 10⁴ - •
values are 0 or 1