IRIS Toolbox Reference Manual

## companion

Matrices of first-order companion VAR

#### Syntax

    [A,B,K] = companion(V)

#### Input arguments

- `V` [ VAR ] - VAR object for which the companion matrices will be returned.

#### Output arguments

- `A` [ numeric ] - First-order companion transition matrix.

- `B` [ numeric ] - First-order companion coefficient matrix at reduced-form residuals.

- `K` [ numeric ] - First-order compnaion constant vector.

#### Description

#### Example

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