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减少数据集按股票分组字符串分配

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boris
2026-08-25 19:20:23 +08:00
parent 68ebe76f24
commit fac5078dbf
1 changed files with 5 additions and 4 deletions
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crates/fidc-core/src/data.rs
+5 -4
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@@ -1304,10 +1304,11 @@ impl DataSet {
sort_groups_by_symbol(&mut factor_by_date, |item| item.symbol.as_str()); sort_groups_by_symbol(&mut factor_by_date, |item| item.symbol.as_str());
let mut market_rows_by_symbol = AHashMap::<String, Vec<&DailyMarketSnapshot>>::new(); let mut market_rows_by_symbol = AHashMap::<String, Vec<&DailyMarketSnapshot>>::new();
for row in market_by_date.values().flatten() { for row in market_by_date.values().flatten() {
market_rows_by_symbol if let Some(rows) = market_rows_by_symbol.get_mut(row.symbol.as_str()) {
.entry(row.symbol.clone()) rows.push(row);
.or_default() continue;
.push(row); }
market_rows_by_symbol.insert(row.symbol.clone(), vec![row]);
} }
let market_rows_by_symbol = market_rows_by_symbol.into_iter().collect::<Vec<_>>(); let market_rows_by_symbol = market_rows_by_symbol.into_iter().collect::<Vec<_>>();
let market_series_by_symbol = market_rows_by_symbol let market_series_by_symbol = market_rows_by_symbol