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fix: NullIndex in ML model.predict error #917

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Merged
merged 1 commit into from
Aug 27, 2024
Merged

fix: NullIndex in ML model.predict error #917

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3 changes: 2 additions & 1 deletion 3 bigframes/ml/core.py
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Original file line number Diff line number Diff line change
Expand Up @@ -77,7 +77,8 @@ def _apply_ml_tvf(

result_sql = apply_sql_tvf(input_sql)
df = self._session.read_gbq(result_sql, index_col=index_col_ids)
df.index.names = index_labels
if df._has_index:
df.index.names = index_labels
# Restore column labels
df.rename(
columns={
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10 changes: 9 additions & 1 deletion 10 tests/system/large/ml/test_linear_model.py
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Original file line number Diff line number Diff line change
Expand Up @@ -111,7 +111,7 @@ def test_linear_regression_customized_params_fit_score(
assert reloaded_model.learning_rate == 0.2


def test_unordered_mode_regression_configure_fit_score(
def test_unordered_mode_linear_regression_configure_fit_score_predict(
unordered_session, penguins_table_id, dataset_id
):
model = bigframes.ml.linear_model.LinearRegression()
Expand Down Expand Up @@ -154,6 +154,14 @@ def test_unordered_mode_regression_configure_fit_score(
assert reloaded_model.max_iterations == 20
assert reloaded_model.tol == 0.01

pred = reloaded_model.predict(df)
utils.check_pandas_df_schema_and_index(
pred,
columns=("predicted_body_mass_g",),
col_exact=False,
index=334,
)


# TODO(garrettwu): add tests for param warm_start. Requires a trained model.

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