When choosing zero-inflation count data models, if the models were nested, using likelihood ratio test;
选择零膨胀计数数据拟合模型时，若模型间是嵌套关系，需要采用似然比检验；
Zero-truncated count models could be applied for the zero-truncated count data of cohort surveillance well.
阐明定群监测计数资料零截尾分布数据的分析方法。
Zero-truncated count models could be applied for the zero-truncated count data of cohort surveillance well.
阐明定群监测计数资料零截尾分布数据的分析方法。
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