# Penalized Data Sharpening Operator for Local Polynomial Regression

### Description

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

### Usage

1 |

### 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

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