Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!
Get Started for Free
Documentation
R
CVXR

QuadForm-class

The QuadForm class.

Description

This class represents the quadratic form x^T P x

Usage

QuadForm(x, P)

## S4 method for signature 'QuadForm'
name(x)

## S4 method for signature 'QuadForm'
allow_complex(object)

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

## S4 method for signature 'QuadForm'
validate_args(object)

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

## S4 method for signature 'QuadForm'
dim_from_args(object)

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

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

## S4 method for signature 'QuadForm'
is_atom_log_log_convex(object)

## S4 method for signature 'QuadForm'
is_atom_log_log_concave(object)

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

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

## S4 method for signature 'QuadForm'
is_quadratic(object)

## S4 method for signature 'QuadForm'
is_pwl(object)

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

Arguments

x

An Expression or numeric vector.
P

An Expression, numeric matrix, or vector.
object

A QuadForm object.
values

A list of numeric values for the arguments
idx

An index into the atom.

Methods (by generic)

  • name: The name and arguments of the atom.

  • allow_complex: Does the atom handle complex numbers?

  • to_numeric: Returns the quadratic form.

  • validate_args: Checks the dimensions of the arguments.

  • sign_from_args: Returns the sign (is positive, is negative) of the atom.

  • dim_from_args: The dimensions of the atom.

  • is_atom_convex: Is the atom convex?

  • is_atom_concave: Is the atom concave?

  • is_atom_log_log_convex: Is the atom log-log convex?

  • is_atom_log_log_concave: Is the atom log-log concave?

  • is_incr: Is the atom weakly increasing in the argument idx?

  • is_decr: Is the atom weakly decreasing in the argument idx?

  • is_quadratic: Is the atom quadratic?

  • is_pwl: Is the atom piecewise linear?

  • .grad: Gives the (sub/super)gradient of the atom w.r.t. each variable

Slots

x

An Expression or numeric vector.

P

An Expression, numeric matrix, or vector.

CVXR

Disciplined Convex Optimization

v1.0-10
Apache License 2.0 | file LICENSE
Authors
Anqi Fu [aut, cre], Balasubramanian Narasimhan [aut], David W Kang [aut], Steven Diamond [aut], John Miller [aut], Stephen Boyd [ctb], Paul Kunsberg Rosenfield [ctb]
Initial release

We don't support your browser anymore

Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.