When to not use R squared
56599
Is $R^2$ useful or dangerous?
81816
Whether to delete cases that are flagged as outliers by statistical software when performing multiple regression?
58017
When is it necessary to estimate the covariance matrix instead of calculating it directly?
92599
Prove there generally is no isomorphism between $R[x]/(x^2-a)$ and $R^2$
146616
Why is the squared difference so commonly used?
115747
How can I calculate the R-squared of a regression with arima errors using R?
70580
$R^2$ of 1 but RMSE > 0
132568
Adjusted R-squared formula
105097
Calculating sum of squared deviations in R
136457
Difference in scaling of Linear Discriminant Analysis coefficients between manual calculation and R
83292
Manually calculated $R^2$ doesn't match up with randomForest() $R^2$ for testing new data
29875
Why not using the R squared to measure forecast accuracy?
55479
Negative R squared contradicts ssa/sst?
112286
Why does R use partial matching?
44278
$R^2$ for least absolute deviation regression
10967
Why is sum of squared residuals non-increasing when adding explanatory variable?
119496
Standardizing variables with negative values in R