Objective: to study how to model zero-inflated count data, and apply it to handle the data about respiratory infection.
目的：研究零过多计数资料的分布拟合方法并应用于急性上呼吸道感染调查资料。
Objective: to study how to model zero-inflated count data, and apply it to handle the data about respiratory infection.
目的：研究零过多计数资料的分布拟合方法并应用于急性上呼吸道感染调查资料。
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