Explore the Ionosphere
Guided project · 14 steps · Principal component analysis
About
Radar returns from the ionosphere (Johns Hopkins). You reduce 34 continuous features to a few components and see whether "good" vs "bad" returns separate in PC space.
Data
Loaded from /datasets/ionosphere/ionosphere.data. No missing values. Labels are for visualization only—PCA itself is unsupervised.
Task
Standardize features, fit PCA, read a scree plot, project onto PC1–PC2, color by class, and inspect which original attributes load strongly on PC1.
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Upgrade to ProDataset credit: Ionosphere dataset by V. Sigillito, S. Wing, L. Hutton, and K. Baker (UCI Machine Learning Repository, DOI: 10.24432/C5W01B), licensed under CC BY 4.0. Dataset page: UCI Ionosphere.