Calculates the crowding distance, enabling comparison of candidates in the same Pareto rank. See Section 2.2 of https://doi.org/10.1145/1068009.1068047.

Parameters¶

alloys: DataFrame¶

The current population of alloy candidates

targets: dict¶

Dict of targets for maximisation and minimisation.

target_normalisation: dict¶

Dict of normalisation factors for each target.