fix: show N/A for EN/FR/KI in ML classifier registry rows

eval/results/model_registry.json

@@ -92,10 +92,10 @@
       "lexicon_sizes": {"en": 515, "sw": 187, "fr": 69, "ki": 1209},
       "ground_truth_sizes": {"en": 66, "sw": 51419, "fr": 50, "ki": 11848},
       "metrics": {
-        "en": {"f1": 0.885, "precision": 1.000, "recall": 0.794},
+        "en": {"f1": null, "precision": null, "recall": null},
         "sw": {"f1": 0.854, "precision": 0.938, "recall": 0.784},
-        "fr": {"f1": 0.793, "precision": 1.000, "recall": 0.657},
-        "ki": {"f1": 0.368, "precision": 0.916, "recall": 0.231}
+        "fr": {"f1": null, "precision": null, "recall": null},
+        "ki": {"f1": null, "precision": null, "recall": null}
       }
     },
     {
@@ -106,10 +106,10 @@
       "lexicon_sizes": {"en": 515, "sw": 187, "fr": 69, "ki": 1209},
       "ground_truth_sizes": {"en": 66, "sw": 64723, "fr": 50, "ki": 11848},
       "metrics": {
-        "en": {"f1": 0.885, "precision": 1.000, "recall": 0.794},
+        "en": {"f1": null, "precision": null, "recall": null},
         "sw": {"f1": 0.953, "precision": 0.940, "recall": 0.960},
-        "fr": {"f1": 0.793, "precision": 1.000, "recall": 0.657},
-        "ki": {"f1": 0.368, "precision": 0.916, "recall": 0.231}
+        "fr": {"f1": null, "precision": null, "recall": null},
+        "ki": {"f1": null, "precision": null, "recall": null}
       }
     }
   ]

gradio_app.py

@@ -308,10 +308,10 @@ def load_registry_table() -> tuple[list[list], str]:
             v.get("tag", ""),
             v.get("timestamp", "")[:10],
             v.get("git_commit") or "—",
-            f"{m.get('en', {}).get('f1', 0):.3f}",
-            f"{m.get('sw', {}).get('f1', 0):.3f}",
-            f"{m.get('fr', {}).get('f1', 0):.3f}",
-            f"{m.get('ki', {}).get('f1', 0):.3f}",
+            _fmt_metric(m.get('en', {}).get('f1')),
+            _fmt_metric(m.get('sw', {}).get('f1')),
+            _fmt_metric(m.get('fr', {}).get('f1')),
+            _fmt_metric(m.get('ki', {}).get('f1')),
             v.get("notes", ""),
         ])
     ts = reg["versions"][-1]["timestamp"][:16].replace("T", " ") if reg.get("versions") else "—"