Polars Feature Engineering: Lags, Diffs, and Percent Changes

1 · · July 1, 2026, 2:04 p.m.
Data Science 2026 Feature-engineering Machine Learning Feature-engineering Machine Learning Data Science Stock Price Prediction
Summary
This blog post discusses crucial techniques in feature engineering for Machine Learning models, focusing on the importance of incorporating lagged values, differences, and percent changes in data, particularly in predicting stock prices or sales.
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