Decoding the results of the Ridge Trace method for nonorthogonal linear models into practical predicting coefficients

Abstract

The troublesome task of decoding the coefficients obtained from the Ridge Trace method for nonorthogonal models when k > 0 can be easily resolved by using the decoding factor Cβ₁ = normal coefficient/standardized coefficient, both terms calculated by the least square procedure. A non-significant amount of error is then introduced but recovering the coefficients in their original unities for a practical predicting equations surmounts this objection. The intercept of the final equation is obtained in the usual way. A FORTRAN program on the method is added allowing quick data computation and further basis for decoding coeficients.