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Fix: Improve robustness in 06_modeling_demo.py (Types, Dependencies, & Pandas Ambiguity)Fix modeling demo types #16

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Fix: Improve robustness in 06_modeling_demo.py (Types, Dependencies, & Pandas Ambiguity)Fix modeling demo types #16

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@xx-devvv xx-devvv commented Jan 24, 2026

This PR fixes three distinct issues preventing 06_modeling_demo.py from running:

  1. Logic Fix: Casts target variables to int to prevent ValueError: Unknown label type: continuous in classifiers.
  2. Robustness Fix: Wraps auto_hpo in a try-except block to gracefully handle the missing optuna library.
  3. Bug Fix: Resolves a ValueError: The truth value of a DataFrame is ambiguous in Demo 5 by explicitly checking types with isinstance.

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