不能要绝对值

src/trend14400.rs

@@ -29,7 +29,7 @@ pub fn generate_14400trend_by_records(records: &Vec<Record>) -> Indicators {
         // 计算比率
         let trend = records.last().unwrap().close / mean;
 
-        indicators.trend_strength = (trend - Decimal::ONE).abs();
+        indicators.trend_strength = trend - Decimal::ONE;
         indicators.trend_strength.rescale(6);
     }