Linear PCA in 2D
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Organize the points into a diagonal line. How do the points appear when projected to PC1 compared to PC2?
What is the variance and Explained variance ratio when points are projected onto PC1?
What is the variance and Explained variance ratio when points are projected onto PC2?
Compare your results with others. How did your variance and EVR compare with others? Why do you think your results were the same or different from others?