PLOT Subcommand (LINEAR_RIDGE extension command)

The PLOT subcommand allows specification of plots of observed or residual values vs. predicted values, and with crossvalidation, specification of plots of average mean squared error (MSE) and/or average R² over crossvalidation folds vs. alpha values.

MSE.

Display a line plot of average MSE over crossvalidation folds vs. alpha. Ignored if crossvalidation is not in effect. (If TRACE mode is in effect, a similar plot is automatically produced, based on the complete training data.)

R2.

Display a line plot of average R² over crossvalidation folds vs. alpha. Ignored if crossvalidation is not in effect. (If TRACE mode is in effect, a similar plot is automatically produced, based on the complete training data.)

OBSERVED.

Display a scatterplot of observed vs. predicted values for the specified or best model.

RESIDUAL.

Display a scatterplot of residuals vs. predicted values for the specified or best model.