lmridge (version 1.2.2)

info.plot: Model Selection Criteria Plots

Description

Plot of ridge AIC and BIC model selection criteria against ridge degrees of freedom (see Akaike, 1974 <tools:::Rd_expr_doi("10.1109/TAC.1974.1100705")>; Imdad, 2017 and Schwarz, 1978 <tools:::Rd_expr_doi("10.1214/aos/1176344136")>).

Usage

info.plot(x, abline = TRUE, ...)

Value

Nothing returned

Arguments

x

An object of class "lmridge".

abline

Vertical line to show minimum value of ridge MSE at certain value of ridge degrees of freedom.

...

Not presently used in this implementation.

Author

Muhammad Imdad Ullah, Muhammad Aslam

Details

Plot of ridge AIC and BIC against ridge degress of freedom \(\sum_{j=1}^p \frac{\lambda_j}{\lambda_j+k}\). A vertical line represents the minimum ridge MSE at certain value of ridge df.

References

Akaike, H. (1974). A new look at the Statistical Model Identification. IEEE Transaction on Automatic Control, 9(6), 716--723. tools:::Rd_expr_doi("10.1109/TAC.1974.1100705").

Imdad, M. U. Addressing Linear Regression Models with Correlated Regressors: Some Package Development in R (Doctoral Thesis, Department of Statistics, Bahauddin Zakariya University, Multan, Pakistan), 2017.

Schwarz, G. (1978). Estimating the Dimension of a Model. Annals of Statistics, 6(2), 461--464. tools:::Rd_expr_doi("10.1214/aos/1176344136").

See Also

The ridge model fitting lmridge, ridge CV and GCV plotcv.plot, variance biase trade-off plot bias.plot, m-scale and isrm plots isrm.plot, ridge and VIF trace plot.lmridge, miscellaneous ridge plots rplots.plot

Examples

mod <- lmridge(y~., as.data.frame(Hald), K = seq(0, 0.15, 0.002))
## for indication vertical line (df ridge)
info.plot(mod)

## without vertical line set \code{abline = FALSE}
info.plot(mod, abline = FALSE)