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R square (R

Definition:

Square of the correlation coefficient. The proportion of the variability in one series that can be explained by the variability of one or more other series a regression model. A measure of the quality of fit. 100% R-square means perfect predictability.

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Copyright © 2011 Campbell R. Harvey, Professor of Finance, Fuqua School of Business at Duke University

Term of the Day

Noisy Chaos

A chaotic dynamical system with either observational or system noise added. See: Chaos, Dynamical Systems, Observational Noise, System Noise.

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