Based on the condition, to adjust rankorder with semiparametric method for statistical inference is more reasonable in two sample ranktest.
根据这一情况，本文用半参数方法来校正秩次，使两组秩和检验的统计推断更为合理。
2
Because some products show no failure in the random truncation test period, this paper USES the mean rankorder method to calculate the empirical cumulative distribution function.