- Added CatBoost version 1.2.8 to the project dependencies in pyproject.toml.
- Updated uv.lock to include CatBoost and its dependencies, along with the necessary wheel files.
- Included Graphviz version 0.21 in the lock file as a dependency for CatBoost.
- Updated execution counts for various code cells to maintain consistency.
- Changed the model from RandomForestClassifier to GradientBoostingClassifier.
- Modified hyperparameter grid for GridSearchCV to include learning_rate and adjusted n_estimators.
- Added stratification to train-test split for better representation of classes.
- Corrected scoring parameter in GridSearchCV to use a valid metric.
- Updated output messages to reflect changes in model evaluation metrics.
- Created a new Jupyter notebook: 2025_M2_ISF_TP_4.ipynb for supervised machine learning exercises, including data preparation, model building, and performance analysis.
- Added 'imblearn' as a dependency in pyproject.toml to support handling imbalanced datasets.
- Updated uv.lock to include the 'imbalanced-learn' package and its dependencies.
- Changed execution_count from 3 to null for a cleaner notebook state.
- Simplified the normality test logic by using a conditional expression to determine the p-value calculation, improving code readability.
- Updated execution counts for multiple code cells to maintain consistency.
- Removed redundant imports and organized import statements.
- Improved formatting for better readability in train-test split section.
- Added markdown explanations for model performance metrics (MAE, RMSE).
- Enhanced cross-validation training loop with detailed output for each fold's metrics.
- Created a new Python script for analyzing historical stock data.
- Implemented functions to test normality of price and return distributions.
- Included functionality to compute and visualize the efficient frontier for a portfolio of stocks.
- Added comments and documentation for clarity and future reference.
- Created a new Python script for portfolio analysis using historical stock data.
- Implemented functions for normality testing of prices and returns.
- Added histogram plots for prices and returns.
- Included logic for random portfolio allocation and efficient frontier calculation.
- Updated `pyproject.toml` to include `pandas-stubs` for type hinting support.
- Modified `uv.lock` to reflect the addition of `pandas-stubs` and its dependencies.
