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There exists one execution path that results in an
IndexError
, this fix solves it.Specifically, whenever we evaluate a single scan which contains a match
m
that bothhas_gt
andhas_pred
, in which all predictions are non-matched but also all of them are ignored and not counted as FP, theny_true
and consequentlyy_true_sorted_cumsum
are empty arrays.Then accessing
y_true_sorted_cumsum[-1]
results in an IndexError.