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Author SHA1 Message Date
dbe3e05fb1 fix(tradein/estimate): нет индекса у аналогов — нет квартальной поправки (#2583 C3)
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price_index нормирован на медиану Екатеринбурга (99a_quarter_price_index.sql),
поэтому фолбэк `avg_analog_index = ... else 1.0` подставлял в знаменатель
gap-коррекции не «нейтраль», а уровень ЕКБ. Для цели вне ЕКБ (индексы области
0.28–0.82) это превращало поправку в безусловную скидку: factor = target_qi,
после клампа до −40%, с подписью «Учтена локация квартала» — то есть догадка
выдавалась пользователю за методику.

Нет данных → нет поправки. Ровно тот же factor=1.0 получается из avg := target_qi,
и это лучшая оценка неизвестного avg на живых данных: медиана |ошибки| 0.116
против 0.161 у 1.0, p90 0.337 против 0.517 (400 лотов, 2026-08-12).

Проверка направления на сделках Росреестра (12 мес, медианы ₽/м² по городам):
без поправки ошибка +0…+14%, с текущей поправкой −32…−40%. Правка поднимает
цену и одновременно уводит её к правде, а не просто вверх.

MV и FDW не трогаются намеренно: строки basis='district'/'city_fallback' имеют
n_deals 3–4, а эстиматор требует n_deals >= 10 — второй 1.0 (city_fallback в
99a) до него структурно не доходит (прод: 0 из 1894 строк видимы).

Тесты: два прежних кейса задавали уровень аналогов отсутствием кадастра,
то есть опирались на сам дефект — переведены на явную карту analog_indexes.

Refs #2583
2026-08-12 19:18:01 +05:00
8b79e9659b fix(tradein/estimate): не строить цену по одному-двум аналогам, не отдавать 0 ₽ (#2629)
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2026-08-02 12:41:48 +00:00
8b7af92ee3 fix(tradein/estimator): displayed analog cards match n_analogs + cross-source dedup (#2518)
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2026-07-13 20:19:20 +00:00
d22e0e00ae tech-debt(tradein/estimator): collapse won estimate_* flags into defaults (#1970) (#2475)
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2026-07-12 12:46:18 +00:00
3f31d1f409 fix(estimator): sanity-clamp quarter-index factor (#859) (#863)
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Co-authored-by: bot-backend <bot-backend@gendsgn.local>
Co-committed-by: bot-backend <bot-backend@gendsgn.local>
2026-05-31 07:20:59 +00:00
b16a45ef87 feat(tradein): per-cadastral-quarter price index in estimator (#764) (#858)
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Co-authored-by: bot-backend <bot-backend@gendsgn.local>
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2026-05-31 06:53:21 +00:00