Penalized Data Sharpening Operator for Local Polynomial Regression

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Description

Data perturbation operator which moves responses a minimal amount subject to a given penalty.

Usage

1
sharpen(x, y, lambda, B) 

Arguments

x

numeric vector of predictor observations

y

numeric vector of observed responses

lambda

numeric penalty constant

B

numeric matrix, based on penalty

Value

a numeric vector containing the sharpened responses

Author(s)

W.J. Braun