Generalized Ridge Trace Plots for Ridge Regression
Biplot of Ridge Regression Trace Plot in SVD Space
Enhanced Contour Plots
Generalized ridge trace plots for ridge regression
Scatterplot Matrix of Bivariate Ridge Trace Plots
Transform Ridge Estimates to PCA Space
Plot Shrinkage vs. Variance for Ridge Precision
Bivariate Ridge Trace Plots
3D Ridge Trace Plots
Measures of Precision and Shrinkage for Ridge Regression
Ridge Regression Estimates
Univariate Ridge Trace Plots
Make Colors Transparent
Variance Inflation Factors for Ridge Regression
The genridge package introduces generalizations of the standard univariate ridge trace plot used in ridge regression and related methods. These graphical methods show both bias (actually, shrinkage) and precision, by plotting the covariance ellipsoids of the estimated coefficients, rather than just the estimates themselves. 2D and 3D plotting methods are provided, both in the space of the predictor variables and in the transformed space of the PCA/SVD of the predictors.
Useful links