Scaling: Min-Max, z-Score & Robust Scaling with Quartiles
This lesson is part of the course
In this lesson
You fit three scalers on the training rows, apply them to every applicant including the test rows, and measure how one 210,000 income squeezes min-max scaling.
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Lessons in this course
- Missing Values: Data Types, Missing Flags & Mean, Median and Group Imputation Locked
- Encoding Categories: One-Hot Dummies, Count Encoding & Ordinal Ranks Locked
- Scaling: Min-Max, z-Score & Robust Scaling with Quartiles Locked
- Binning & Quantile Buckets: Tenure Bands, Income Quartiles & Default Rates (with a Chart) Locked
- Log Transforms & Outlier Capping (Winsorising at the 5th/95th Percentile) Locked
- Ratio & Interaction Features: Loan-to-Income, DTI and LTI × Self-Employed Locked
- Target Encoding with Smoothing & Why Leakage Happens (Train/Test Split) Locked
- Feature Importance Screen: Correlation with the Target & a Univariate AUC (with a Chart) Locked