Domain#
- class gamspy.Domain(*sets: tuple[Set | Alias | ImplicitSet])[source]#
Bases:
object
Domain class needed for where statements on multidimensional index list in operations
- Parameters:
- sets: tuple[Set | str]
Methods
gamsRepr
()Representation of this Domain in GAMS language.
Representation of this Domain in Latex.
Examples
>>> from gamspy import Container, Set, Ord, Card, Variable, Equation, Sum, Domain >>> m = Container() >>> X = Set(m, name="X", records=[f"I{i}" for i in range(1, 22)]) >>> Y = Set(m, name="Y", records=[f"J{j}" for j in range(1, 22)]) >>> inside = Set(m, name="inside", domain=[X, Y]) >>> inside[X, Y].where[~((Ord(X) == 1) & (Ord(X) == Card(X)))] = True >>> f = Variable(m, name="f", domain=[X, Y], type="positive") >>> obj = Variable(m, name="obj") >>> objfun = Equation(m, name="objfun", type="regular") >>> objfun[...] = obj == Sum(Domain(X, Y).where[inside[X, Y]], f[X.lead(1), Y] - f[X, Y])
- gamsRepr() str [source]#
Representation of this Domain in GAMS language.
- Returns:
- str
Examples
>>> from gamspy import Container, Set, Domain >>> m = Container() >>> X = Set(m, name="x", records=[f"I{i}" for i in range(1, 22)]) >>> Y = Set(m, name="y", records=[f"J{j}" for j in range(1, 22)]) >>> Domain(X, Y).gamsRepr() '(x,y)'