Regression Analysis, R Squared, Pseudo R Squared, Adjusted R Squared, Deviance.
freedom of the mean model. For a training data set of size N, df_mean_model=(N-1). df_model is the degrees of freedom of the regression model. For a model with p regression variables, df_model=(N-1-p). Substituting: Formula for Adjusted-R² (Image by Author) One can see that as the model acquires