R-squared Definition & Application Wiki
R-squared Definition & Application Wiki
Last Updated by WikiWealth
Short Definition
In statistics, the coefficient of determination, R2, is the proportion of variability in a data set that is accounted for by a statistical model.
There is no consensus about the exact definition of R2. Only in the case of linear regression are all definitions equivalent. In this case, R2 is simply the square of a correlation coefficient.
Long Definition
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Source: http://en.wikipedia.org/wiki/R_squared
