Add ratio column to comparison table programmatically

- Calculate Ratio (TU/HH) column after creating initial dataframe
- Applies ratio calculation to all rows including average rebate base
- Shows tax units have 0.93x the average rebate base of households
- Cleaner code structure with ratios calculated in one place

Author: MaxGhenis

us/states/ca/aei_rebate/aei_rebate_analysis.ipynb

@@ -770,9 +770,7 @@
   {
    "cell_type": "markdown",
    "metadata": {},
-   "source": [
-    "## 7. Analysis of Household vs Tax Unit Differences"
-   ]
+   "source": "# Create comparison table\ncomparison_data = {\n    'Metric': [\n        'Total Count',\n        'Eligible Units (with rebate base)',\n        'Total Rebate Base',\n        'Average Rebate Base (eligible only)'\n    ],\n    'Households': [\n        f\"{household_results['total_ca_households']/1e6:.1f}M\",\n        f\"{household_results['households_with_rebate']/1e6:.1f}M ({household_results['rebate_percentage']:.0%})\",\n        f\"${household_results['total_rebate_base']/1e9:.1f}B\",\n        f\"${household_results['average_rebate_base']:,.0f}\"\n    ],\n    'Tax Units': [\n        f\"{tax_unit_results['total_ca_tax_units']/1e6:.1f}M\",\n        f\"{tax_unit_results['tax_units_with_rebate']/1e6:.1f}M ({tax_unit_results['rebate_percentage']:.0%})\",\n        f\"${tax_unit_results['total_rebate_base']/1e9:.1f}B\",\n        f\"${tax_unit_results['average_rebate_base']:,.0f}\"\n    ]\n}\n\ncomparison_df = pd.DataFrame(comparison_data)\n\n# Calculate ratios for all metrics\nratios = [\n    f\"{tax_unit_results['total_ca_tax_units']/household_results['total_ca_households']:.2f}x\",\n    f\"{tax_unit_results['tax_units_with_rebate']/household_results['households_with_rebate']:.2f}x\",\n    f\"{tax_unit_results['total_rebate_base']/household_results['total_rebate_base']:.2f}x\",\n    f\"{tax_unit_results['average_rebate_base']/household_results['average_rebate_base']:.2f}x\"\n]\n\ncomparison_df['Ratio (TU/HH)'] = ratios\n\nprint(\"=== HOUSEHOLD VS TAX UNIT ANALYSIS ===\")\ncomparison_df"
   },
   {
    "cell_type": "code",
@@ -1127,4 +1125,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 4
-}
+}