Functions are provided to calculate and display ridge TRACEs for various shrinkage PATHS. They determine the mExtent of shrinkage most likely, under Normaldistribution theory, to produce biased estimates of regression (beta) coefficients with minimum MSE Risk. An alternative function, correct.signs(), provides beta coefficient estimates when an illconditioned (nearly multicollinear) model yields OLS estimates with ("wrong") numerical signs that disagree with the signs of the observed correlations between the Youtcome and the selected Xpredictor variables. InSample predictions can be made for all fivetypes of RXshrink linear regression model estimation.
Package details 


Author  Bob Obenchain 
Maintainer  Bob Obenchain <wizbob@att.net> 
License  GPL2 
Version  1.3.3 
URL  https://www.Rproject.org http://localcontrolstatistics.org 
Package repository  View on CRAN 
Installation 
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