Produces a ridge trace plot and a plot of RSS VS K for data in Y and predictors formed into the M1 matrix. M1 and Y should be in "correlation form". These plots are useful data analytic tools for ridge regression.
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%RTP
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This macro utilizes the following columns, constants, and matrices for "scratch" storage. Be sure these locations are empty, or edit the code to specify different storage locations.
Reference
D.W. Marquardt & R.D. Snee, "Ridge Regression in Practice" The American Statistician, VOL. 29, NO. 1.