From: Jérôme Benoit <jerome.benoit@piment-noir.org>
Date: Thu, 17 Sep 2026 17:38:37 +0000 (+0200)
Subject: fix(quickadapter): isolate fitted scalers before and after PCA
X-Git-Url: https://git.piment-noir.org/?a=commitdiff_plain;h=c96f1c7113e98ba1d697f538cec0df8dc78f9085;p=freqai-strategies.git

fix(quickadapter): isolate fitted scalers before and after PCA
---

diff --git a/quickadapter/user_data/freqaimodels/QuickAdapterRegressorV3.py b/quickadapter/user_data/freqaimodels/QuickAdapterRegressorV3.py
index c22143b..43e4b07 100644
--- a/quickadapter/user_data/freqaimodels/QuickAdapterRegressorV3.py
+++ b/quickadapter/user_data/freqaimodels/QuickAdapterRegressorV3.py
@@ -1960,7 +1960,7 @@ class QuickAdapterRegressorV3(BaseRegressionModel):
             scaler_obj = SKLearnWrapper(MinMaxScaler(feature_range=feature_range))
 
         steps = [
-            (name, scaler_obj) if name in ("scaler", "post-pca-scaler") else (name, transformer)
+            (name, copy.deepcopy(scaler_obj)) if name in ("scaler", "post-pca-scaler") else (name, transformer)
             for name, transformer in pipeline.steps
         ]