Scorer/Accuracy Statistics node shows red ❓ for “Overall” row despite perfect per-class metrics

What I want to achieve

  • Evaluate model performance using per-class and overall accuracy metrics.

What’s happening

  • Confusion matrix shows 0 false positives and 0 false negatives.

  • Per-class metrics (Recall, Precision, F‑measure, Specificity, Accuracy) are all `1.0`.

  • However, in the “Overall” row, Accuracy and Cohen’s Kappa appear as red question marks (:question:) — not calculated.

I’ve verified that class names match exactly in both columns:

*

Label (Ground Truth): 

HEALTI

, 

FAIL_S

*

Prediction: 

HEALTI

, 

FAIL_S

Troubleshooting steps I’ve taken

*

Checked for typos or mismatches in class labels.

*

Ensured no missing values in either column.

*

Tried manually setting class names in the Scorer dialog.

*

Validated data types and used Table Validator to confirm types are correct.

Question

  • Why is the “Overall” row failing to calculate even though per-class metrics are perfect?

  • Is this due to the custom class names (`HEALTHY `, `FAIL_SOON`)?

Thanks

Snehal