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Andras Schmelczer 2026-07-03 18:28:56 +01:00
parent 909e241907
commit 1ee796b282
29 changed files with 250 additions and 126 deletions
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pipeline/transform/price_estimation/index.py
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@ -4,7 +4,7 @@ Stratified by property type and postcode sector, with IRLS Huber regression,
hierarchical shrinkage (sector → district → area → national → hedonic),
and KD-tree spatial smoothing for sparse sectors.
Output: price_index.parquet — sector x type_group x year -> log_index
Output: price_index.parquet (sector x type_group x year -> log_index)
"""
import argparse

2
pipeline/transform/price_estimation/utils.py
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@ -23,7 +23,7 @@ ESTIMATE_COLUMNS = ["Estimated current price", "Est. price per sqm"]
# Natural join key from estimates back onto properties: postcode plus the
# coalesced register/EPC address. This is unique and non-null on the deduped
# dwelling universe (see property_base._dedupe_collapsed_properties), so it maps
# estimates 1:1 onto properties regardless of row order — estimates are computed
# estimates 1:1 onto properties regardless of row order. Estimates are computed
# from a separate price_inputs.parquet, so a positional key would not line up.
JOIN_ADDRESS = "_join_address"
JOIN_KEYS = ["Postcode", JOIN_ADDRESS]