Adjusted R squared is a penalised version of R square, which is a way of describing the ratio of the residual sum of squares to the total sum of ... ... <看更多>

Short answer: the adjusted R-squared formula allows negative answers and if the chosen model fits worse than a horizontal line, ... ... <看更多>

Adjusted R -squared allows us to fairly compare the predictive ability of models with different numbers of predictors. We have to take care when using polynomial ... ... <看更多>