ArchiveStats(num_elites: int, coverage: numpy.floating, qd_score: numpy.floating, obj_max: numpy.floating, obj_mean: numpy.floating)¶
Holds statistics about an archive.
int) – Number of elites in the archive.
floating) – Proportion of bins in the archive that have an elite - always in the range \([0,1]\).
floating) – QD score, i.e. sum of objective values of all elites in the archive. This score only makes sense if objective values are non-negative.
floating) – Maximum objective value of the elites in the archive. None if there are no elites in the archive.
floating) – Mean objective value of the elites in the archive. None if there are no elites in the archive.
Return number of occurrences of value.
index(value, start=0, stop=9223372036854775807, /)¶
Return first index of value.
Raises ValueError if the value is not present.