qiskit.circuit.ParameterExpression.subs¶
- ParameterExpression.subs(parameter_map, allow_unknown_parameters=False)[source]¶
Returns a new Expression with replacement Parameters.
- Parameters
parameter_map (dict) – Mapping from Parameters in self to the ParameterExpression instances with which they should be replaced.
allow_unknown_parameters (bool) – If
False, raises an error ifparameter_mapcontains Parameters in the keys outside those present in the expression. IfTrue, any such parameters are simply ignored.
- Raises
CircuitError –
If parameter_map contains Parameters outside those in self. - If the replacement Parameters in parameter_map would result in a name conflict in the generated expression.
- Returns
A new expression with the specified parameters replaced.
- Return type