Tools
-----

.. currentmodule:: dismalpy.ssm.tools

.. autofunction:: companion_matrix

.. autofunction:: diff

.. autofunction:: is_invertible

.. autofunction:: constrain_stationary_univariate

.. autofunction:: unconstrain_stationary_univariate

.. autofunction:: constrain_stationary_multivariate

.. autofunction:: unconstrain_stationary_multivariate

.. autofunction:: validate_matrix_shape

.. autofunction:: validate_vector_shape