lpridge
(Package: lpridge) :
Local polynomial regression fitting with ridging
Fast and stable algorithm for nonparametric estimation of regression functions and their derivatives via local polynomials and local polynomial ridge regression with polynomial weight functions.
lpepa
(Package: lpridge) :
Local polynomial regression fitting with Epanechnikov weights
Fast and stable algorithm for nonparametric estimation of regression functions and their derivatives via local polynomials with Epanechnikov weight function.
providing 
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