embcol.problem.Constraint

class embcol.problem.Constraint(function, jacobian, hessian, n_outputs, lower_bound=-inf, upper_bound=inf)

Bases: object

Constraint for parameters.

Parameters:

• function (callable) – Constraint function. The signature must be (params) -> values, where params is a one-dimensional array of parameters and values is a one-dimensional array of constrained values.

• jacobian (callable) – Jacobian of a constraint function. The signature must be (params) -> values, where params is a one-dimensional array of parameters and values is a Jacobian matrix. values[i, k] is a derivative of the ith output with respect to the kth parameter.

• hessian (callable) – Hessian of a constraint function. The signature must be (params) -> values, where params is a one-dimensional array of parameters and values is a Hessian matrix. values[i, k1, k2] is a second derivative of the ith output with respect to the k1th and k2th parameters.

• n_outputs (int) – Number of outputs of a constraint function.

• lower_bound (float, optional) – Lower bound of a constraint function.

• upper_bound (float, optional) – Upper bound of a constraint function.

Attributes

function	Constraint function.
hessian	Hessian of a constraint function.
jacobian	Jacobian of a constraint function.
lower_bound	Lower bound of a constraint function.
n_outputs	Number of outputs of a constraint function.
upper_bound	Upper bound of a constraint function.

Methods

transform(feasible)	Transform a constraint for adjusting a feasible region.
violation(params)	Measure degrees of the constraint violation.