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merged 5 commits into from
Jun 13, 2024
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DOC add example with set_params. #29243

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f2902fc
DOC add example with ``set_params``.
m-maggi Jun 12, 2024
4cc3995
DOC Linting
m-maggi Jun 13, 2024
f0119a8
DOC Update examples/miscellaneous/plot_set_output.py
m-maggi Jun 13, 2024
d88c96c
DOC Linting
m-maggi Jun 13, 2024
0d2cbae
Update examples/miscellaneous/plot_set_output.py
ArturoAmorQ Jun 13, 2024
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15 changes: 15 additions & 0 deletions examples/miscellaneous/plot_set_output.py
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Expand Up @@ -63,6 +63,21 @@
# means that the final logistic regression step contains the feature names of the input.
clf[-1].feature_names_in_

# %%
# .. note:: If one uses the method `set_params`, the transformer will be
# replaced by a new one with the default output format.
clf.set_params(standardscaler=StandardScaler())
clf.fit(X_train, y_train)
clf[-1].feature_names_in_

# %%
# To keep the intended behavior, use `set_output` on the new transformer
# beforehand
scaler = StandardScaler().set_output(transform="pandas")
clf.set_params(standardscaler=scaler)
clf.fit(X_train, y_train)
clf[-1].feature_names_in_

# %%
# Next we load the titanic dataset to demonstrate `set_output` with
# :class:`compose.ColumnTransformer` and heterogeneous data.
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