```json { "action": "final", "content": "## Missing Values Analysis\n\nBased on the comprehensive scan of all 27 columns in the boxing matches dataset (387,427 total rows), here are the columns with missing values:\n\n### Physical Measurements\n- **reach_B**: 90.2% missing (349,554 nulls) - most severe\n- **reach_A**: 71.0% missing (275,085 nulls)\n- **height_B**: 65.2% missing (252,787 nulls)\n- **height_A**: 35.7% missing (138,181 nulls)\n- **weight_B**: 66.4% missing (257,069 nulls)\n- **weight_A**: 65.0% missing (251,854 nulls)\n\n### Fighter Demographics\n- **age_B**: 33.4% missing (129,492 nulls)\n- **age_A**: 8.9% missing (34,539 nulls)\n\n### Judge Scores\n- **judge1_A**: 86.5% missing (335,179 nulls)\n- **judge1_B**: 86.6% missing (335,367 nulls)\n- **judge2_A**: 81.8% missing (317,056 nulls)\n- **judge2_B**: 81.9% missing (317,395 nulls)\n- **judge3_A**: 84.2% missing (326,196 nulls)\n- **judge3_B**: 84.2% missing (326,404 nulls)\n\n### Complete Columns (0% missing)\nThe following columns have **no missing values**:\n- stance_A, stance_B (fighting stances)\n- won_A, won_B, lost_A, lost_B, drawn_A, drawn_B, kos_A, kos_B (fight records)\n- result, decision (match outcomes)\n\n### Key Insights\n1. **Reach measurements** are the most incomplete, particularly for Fighter B (90% missing)\n2. **Judge scores** are missing in 82-87% of matches, suggesting most matches don't go to decision or scores aren't recorded\n3. **Fight records and outcomes** are complete for all matches\n4. **Physical measurements** (height, weight, reach) are significantly more complete for Fighter A than Fighter B", "charts": [ { "kind": "hbar", "x": "column_name", "series": ["missing_percentage"], "title": "Missing Data by Column (sorted by % missing)" } ] } ```