Local non linear and other regression methods

frpcr - Full-ratio PCR calibration and prediction.

lwrpred - Predictions based on locally weighted regression models.

polypls - PLS regression with polynomial inner-relation.

ridge - Ridge regression by Hoerl-Kennard-Baldwin.

cr - Continuum Regression for multivariate y.

crcvrnd - Cross-validation for continuum regression.

(Sub topic of Quantitative_Regression_Analysis)