32 lines
1.2 KiB
Python
32 lines
1.2 KiB
Python
from __future__ import annotations
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from typing import TYPE_CHECKING
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from models.targets.target import *
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if TYPE_CHECKING:
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from models.problem import Problem
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class TifTarget(Target):
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def constraints(self, problem_handler: Problem, solver_run: SolverRun):
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problem_handler.problem += lpSum([
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bundle.tif(solver_run.irt_model, self.theta)
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* problem_handler.solver_bundles_var[bundle.id]
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for bundle in problem_handler.bundles
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] + [
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item.iif(solver_run.irt_model, self.theta) *
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problem_handler.solver_items_var[item.id]
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for item in problem_handler.items
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]) >= self.minimum(
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), f'Min TIF theta({self.theta}) at target {self.value} with a drift % of {self.drift}'
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problem_handler.problem += lpSum([
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bundle.tif(solver_run.irt_model, self.theta)
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* problem_handler.solver_bundles_var[bundle.id]
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for bundle in problem_handler.bundles
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] + [
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item.iif(solver_run.irt_model, self.theta) *
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problem_handler.solver_items_var[item.id]
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for item in problem_handler.items
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]) <= self.maximum(
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), f'Max TIF theta({self.theta}) at target {self.value} with a drift % of {self.drift}'
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