matrix.Matrix.values_to_score_from_record

Matrix.values_to_score_from_record(dictionary: dict[str, list[tuple[float, float]]])

For multiple continuous criteria, declare what score should a choice receive given values for that criterion.

Parameters

dictionary (dict[str, list[tuple[float, float]]]) – The dictionary with keys for each criteria, and a list of tuples that pairs the criterion value to the score.

Examples

>>> import matrix
>>> m = matrix.Matrix()
>>> m.add_continuous_criterion('size', weight=4)
>>> m.add_continuous_criterion('cost', weight=7)
>>> m.values_to_score_from_record({
...     'size': [(0, 10), (10, 5), (15, 0)],
...     'cost': [(0, 10), (10, 0)],
... })
>>> m.value_score_df
   size  size_score  cost  cost_score
0     0          10   0.0        10.0
1    10           5  10.0         0.0
2    15           0   NaN         NaN

Note

This method has time complexity O(n) in respect to the length of the outer dictionary.

matrix.Matrix.criteria_values_to_scores matrix.Matrix.criterion_value_to_score