StatLab
Work through correlation and classification metrics in one clean lab.
Add raw points, inspect Pearson correlation from scratch, then switch to a live confusion matrix with overall and per-class scoring.
Built for quick experiments
2 tools, zero external math librariesPearson Tab
Enter paired values and inspect the relationship.
Live Data Table
At least two valid pairs are required.
| # | x | y | State |
|---|
Results
Means, standard deviations, Pearson r, and a fitted line.
Confusion Matrix Tab
Score a classifier across two to five classes.
Editable Matrix
Rows are actual classes, columns are predicted classes.
Overall Metrics
Accuracy, macro scores, and weighted F1 update live.
Per-Class Breakdown
Precision, recall, F1, and support for each class.
| Class | Precision | Recall | F1 | Support |
|---|