mapXy.sigmoid: Sigmoid Map Function

In DPpack: Differentially Private Statistical Analysis and Machine Learning

Sigmoid Map Function

Description

This function implements the sigmoid map function from data X to labels y used for logistic regression in the form required by EmpiricalRiskMinimizationDP.CMS.

Usage

mapXy.sigmoid(X, coeff)

Arguments

X	Matrix of data.
coeff	Vector or matrix of coefficients or weights.

Value

Matrix of values of the sigmoid function corresponding to each row of X.

Examples

  X <- matrix(c(1,2,3,4,5,6),nrow=2)
  coeff <- c(0.5,-1,2)
  mapXy.sigmoid(X,coeff)

DPpack documentation built on Oct. 20, 2024, 9:07 a.m.