Reading the Confusion Matrix
See exactly where the model errs.
The Whole Picture
The confusion matrix is a small table showing every prediction sorted by what was true and what you guessed. It reveals exactly where errors live.
Rows and Columns
Rows are the true labels and columns are the predicted ones. Each cell counts how many examples fell into that true-versus-predicted combination.
All lessons in this course
- Why Accuracy Can Lie
- Precision, Recall, and F1
- Reading the Confusion Matrix
- Cross-Validation Done Right