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@@ 214-240 (lines=27) @@
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raise ValueError("Unknown type of metric: '%d'", self.__type)
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def __create_distance_calculator_numpy(self):
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"""!
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@brief Creates distance metric calculator that uses numpy.
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@return (callable) Callable object of distance metric calculator.
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"""
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if self.__type == type_metric.EUCLIDEAN:
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return euclidean_distance_numpy
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elif self.__type == type_metric.EUCLIDEAN_SQUARE:
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return euclidean_distance_square_numpy
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elif self.__type == type_metric.MANHATTAN:
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return manhattan_distance_numpy
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elif self.__type == type_metric.CHEBYSHEV:
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return chebyshev_distance_numpy
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elif self.__type == type_metric.MINKOWSKI:
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return lambda object1, object2: minkowski_distance_numpy(object1, object2, self.__args.get('degree', 2))
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elif self.__type == type_metric.USER_DEFINED:
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return self.__func
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else:
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raise ValueError("Unknown type of metric: '%d'", self.__type)
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@@ 185-211 (lines=27) @@
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return self.__create_distance_calculator_basic()
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def __create_distance_calculator_basic(self):
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"""!
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@brief Creates distance metric calculator.
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@return (callable) Callable object of distance metric calculator.
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"""
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if self.__type == type_metric.EUCLIDEAN:
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return euclidean_distance
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elif self.__type == type_metric.EUCLIDEAN_SQUARE:
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return euclidean_distance_square
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elif self.__type == type_metric.MANHATTAN:
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return manhattan_distance
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elif self.__type == type_metric.CHEBYSHEV:
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return chebyshev_distance
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elif self.__type == type_metric.MINKOWSKI:
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return lambda point1, point2: minkowski_distance(point1, point2, self.__args.get('degree', 2))
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elif self.__type == type_metric.USER_DEFINED:
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return self.__func
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else:
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raise ValueError("Unknown type of metric: '%d'", self.__type)
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def __create_distance_calculator_numpy(self):
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