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avoid collisions in logistic_regression_objective tmp column name #1002

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Merged
eordentlich merged 1 commit into from
Jan 8, 2026
Merged

avoid collisions in logistic_regression_objective tmp column name #1002

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7 changes: 6 additions & 1 deletion python/src/spark_rapids_ml/metrics/utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -54,9 +54,14 @@ def logistic_regression_objective(

# account for effects of standardization on the coefficients for regularization penalty
if lr_model.getStandardization() is True:
column_names = df.columns
outputCol = "_objective_tmp"
while outputCol in column_names:
outputCol = "_" + outputCol

scaler = StandardScaler(
inputCol=features_col,
outputCol="scaledFeatures",
outputCol=outputCol,
)
scaler_model = scaler.fit(df)
stdev = np.array(scaler_model.std)
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