docplex.mp.sosvarset module¶

class docplex.mp.sosvarset.SOSVariableSet(model, variable_sequence, sos_type, weights=None, name=None)[source]¶

Bases: docplex.mp.basic.IndexableObject, docplex.mp.basic._AbstractBendersAnnotated

This class models Special Ordered Sets (SOS) of decision variables. An SOS has a type (SOS1, SOS2) and an ordered list of variables.

This class is not meant to be instantiated directly. To create an SOS, use the docplex.mp.model.Model.add_sos(), docplex.mp.model.Model.add_sos1(), and docplex.mp.model.Model.add_sos2() methods in Model.

benders_annotation¶: This property is used to get or set the Benders annotation of a SOS variable set. The value of the annotation must be a positive integer

iter_variables()[source]¶

Iterates over the variables in the SOS.

Note that the sequence of variables cannot be empty.

Returns:	An iterator.

sos_type¶

This property returns the type of the SOS variable set.

Returns:	An enumerated value of type `docplex.mp.constants.SOSType`.

to_string()[source]¶

Converts an SOS of variables to a string.

This function is used by the __str__() method

Returns:	A string representation of the SOS of variables.