62 lines
1.7 KiB
Python
62 lines
1.7 KiB
Python
from pydantic import BaseModel
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from typing import List
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from lib.irt.test_information_function import TestInformationFunction
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from lib.irt.test_response_function import TestResponseFunction
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from models.attribute import Attribute
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from models.item import Item
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from models.irt_model import IRTModel
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class Bundle(BaseModel):
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id: int
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count: int
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items: List[Item]
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type: str
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def find_items(self, requested_items_ids: [int]) -> [Item]:
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found_items = []
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for item in self.items:
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if item.id in requested_items_ids:
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found_items.append(item)
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return found_items
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def tif(self, irt_model: IRTModel, theta: float) -> float:
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return TestInformationFunction(irt_model).calculate(self.items, theta=theta)
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def trf(self, irt_model: IRTModel, theta: float) -> float:
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return TestResponseFunction(irt_model).calculate(self.items, theta=theta)
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def tif_trf_sum(self, solver_run):
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return self.__trf_sum(solver_run) + self.__tif_sum(solver_run)
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def items_with_attribute(self, attribute: Attribute) -> List[Item]:
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items = []
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for item in self.items:
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if item.attribute_exists(attribute): items.append(item)
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return items
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def __tif_sum(self, solver_run):
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total = 0
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for target in solver_run.objective_function.tcc_targets:
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total += self.tif(solver_run.irt_model, target.theta)
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return total
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def __trf_sum(self, solver_run):
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total = 0
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for target in solver_run.objective_function.tcc_targets:
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total += self.trf(solver_run.irt_model, target.theta)
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return total
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def ordered_items(self) -> List[Item]:
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return sorted(self.items, key=lambda item: item.position)
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