def pass_threshold()

in rules/ruleset.py [0:0]

• 16 lines of code
• 3 McCabe index (conditional complexity)

def pass_threshold(r, stats: ConfusionMatrix):
    num_pos = stats.pos_df.shape[0]
    num_total = stats.df.shape[0]
    ratio_whole = num_pos / num_total
    min_support = math.sqrt(num_pos) / num_total

    tps = stats.true_positive(r)
    num_tp = len(tps)
    exceeds_min_support = num_tp / stats.df.shape[0] >= min_support
    if not exceeds_min_support:
        return False
    cur_tpr = stats.get_tp_ratio(r)
    diff = cur_tpr - ratio_whole
    if diff < cfg.rule_relevance_threshold:
        return False
    cur_coverage = stats.get_coverage_ratio(r)
    return cur_coverage > cfg.rule_coverage_threshold