FreezeOptions#

class gamspy.FreezeOptions(*, no_match_limit: int = 0, debug: bool = False, update_type: Literal['0', 'base_case', 'accumulate', 'inherit'] = 'base_case')[source]#

Options for the freeze method of a Model.

Attributes:

no_match_limitint, optional

Maximum number of non-matching elements to allow. Default is 0.

debugbool, optional

Enables debug mode. Default is False.

update_typeLiteral[“0”, “base_case”, “accumulate”, “inherit”], optional

Specifies the update type for the model instance.

“base_case”: Update from the base case.
“accumulate”: Accumulate changes.
“inherit”: Inherit from the parent.

Default is “base_case”.

Examples

>>> import gamspy as gp
>>> m = gp.Container()
>>> i = gp.Set(m, "i", records=["i1", "i2"])
>>> p = gp.Parameter(m, "p", domain=i, records=[("i1", 1), ("i2", 2)])
>>> v = gp.Variable(m, "v", domain=i)
>>> e = gp.Equation(m, "e", domain=i)
>>> e[i] = v[i] == p[i]
>>> model = gp.Model(m, "test", equations=[e], problem="LP", sense="min", objective=gp.Sum(i, v[i]))
>>> options = gp.FreezeOptions(update_type="accumulate")
>>> instance = model.freeze(modifiables=[p])
>>> p["i1"] = 3
>>> summary = model.solve(freeze_options=options)

debug: bool#

no_match_limit: int#

update_type: Literal['0', 'base_case', 'accumulate', 'inherit']#