I Trained a Machine Learning Model to Predict SPY’s Next-Day Direction.
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A full walk-forward LightGBM classifier, real feature engineering, and the calibration check that most “AI trading bot” content never…

 

 A full walk-forward LightGBM classifier, real feature engineering, and the calibration check that most “AI trading bot” content never…Continue reading on DataDrivenInvestor » Read More Python on Medium 

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