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Understanding r-squared: A single point simplification

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Presentation on theme: "Understanding r-squared: A single point simplification"— Presentation transcript:

1 Understanding r-squared: A single point simplification
Al Coons Buckingham Browne & Nichols School Cambridge, MA

2 y Error w.r.t. mean model Error eliminated by y-hat model Proportion of error eliminated by Y-hat model Error eliminated by y-hat model = Error w.r.t. mean model r2 = proportion of variability accounted for by the given model (w.r.t the mean model).

3 y ~ Error w.r.t. mean model Error eliminated by y-hat model
Proportion of error eliminated by Y-hat model Error eliminated by y-hat model = Error w.r.t. mean model = ~


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