Add census block-level geographic assignment #483
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- Assign census blocks using P(block|CD) from Census population data - Look up all geography from block GEOID for consistency: - County, tract, state (from GEOID structure) - CBSA/metro area (via NBER county crosswalk) - SLDU/SLDL (state legislative districts) - Place/City FIPS (via Census BAF) - PUMA (via tract crosswalk) - VTD (voting tabulation district) - Add block_crosswalk.csv.gz (8.1M blocks) with BAF data - Add make_block_crosswalk.py to generate crosswalk from Census BAFs - Add comprehensive tests for all geography lookups Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Closing to recreate from upstream branch |
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Summary
Data files
block_cd_distributions.csv.gz(25MB): P(block|CD) from 2020 Census populations + 119th Congress BEFblock_crosswalk.csv.gz(21MB): 8.1M blocks mapped to SLDU, SLDL, Place, VTD, PUMA from Census BAFsTest plan
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