单词	coefficient of determination
释义	coefficient of determination The proportion of the variance of the dependent variable which is explained by the model used to fit the data. For a set of data {xi, yi}, 1 ≤ i≤n, if ŷi is the value of y predicted by the model when x = xi, then the unexplained variance after fitting the model is and the total variance is . The explained variance is total variance-unexplained variance. When a linear model is fitted (by the least squares line of regression), the coefficient of is the square of the correlation coefficient.
随便看	order order order order order order order order ordered field ordered pair order isomorphism order notation order of contact order of convergence order of magnitude order statistics ordinal data ordinal number ordinal scale ordinary differential equation ordinate orientable orientation origin orthocentre

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