Logistic-class {CVXR}R Documentation

The Logistic class.

Description

This class represents the elementwise operation \log(1 + e^x). This is a special case of log(sum(exp)) that evaluates to a vector rather than to a scalar, which is useful for logistic regression.

Usage

Logistic(x)

## S4 method for signature 'Logistic'
to_numeric(object, values)

## S4 method for signature 'Logistic'
sign_from_args(object)

## S4 method for signature 'Logistic'
is_atom_convex(object)

## S4 method for signature 'Logistic'
is_atom_concave(object)

## S4 method for signature 'Logistic'
is_incr(object, idx)

## S4 method for signature 'Logistic'
is_decr(object, idx)

## S4 method for signature 'Logistic'
.grad(object, values)

Arguments

x

An Expression or numeric constant.

object

A Logistic object.

values

A list of numeric values for the arguments

idx

An index into the atom.

Methods (by generic)

Slots

x

An Expression or numeric constant.


[Package CVXR version 1.0-10 Index]