CVXR: size-methods – R documentation

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size-methods

Size Properties

Description

Determine if an expression is a scalar, vector, or matrix.

Usage

is_scalar(object)

is_vector(object)

is_matrix(object)

Arguments

object

An Expression object.

Value

A logical value.

Examples

x <- Variable()
y <- Variable(3)
z <- Variable(3,2)

is_scalar(x)
is_scalar(y)
is_scalar(x + y)

is_vector(x)
is_vector(y)
is_vector(2*z)

is_matrix(x)
is_matrix(y)
is_matrix(z)
is_matrix(z - x)

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