The R² (i.e., R-squared) is a measure of the goodness-of-fit in least-squares regression.

Name: The R 2 (i.e., R-squared) is a measure of the goodness-of-fit in least-squares regression.
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The R², or R-squared, is indeed a measure of the goodness-of-fit in least-squares regression. It represents the proportion of the variance in the dependent variable that is explained by the independent variable(s) included in the model.

The R2 (I

The R² (I