Tag: dummies

why OneHotEncoder give better results than get.dummies/reindex? I can’t figure out why I get a better score with OneHotEncoder : preprocessor = ColumnTransformer( transformers=[ (‘cat’, categorical_transformer, categorical_cols) ], remainder=’passthrough’ # <– this keeps the numerical columns ) model_GBR = GradientBoostingRegressor(n_estimators=1100, loss=’squared_error’, subsample = 0.35, learning_rate = 0.05,random_state=1) GBR_Pipeline = Pipeline(steps=[(‘preprocessor’, preprocessor),(‘model’, model_GBR)]) than get.dummies/reindex: X_test…