Regression model
零值模型（Hurdle Model）
零值模型是一种两阶段的计数数据模型，由Mullahy (1986)提出。第一阶段模拟越过零值障碍（零计数与非零计数）的二元选择，第二阶段则使用零截尾分布（如零截尾泊松分布或零截尾负二项分布）来模拟严格正的计数。
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来源
- Mullahy, J. (1986). Specification and Testing of Some Modified Count Data Models. Journal of Econometrics, 33(3), 341–365. DOI: 10.1016/0304-4076(86)90002-3 ↗
如何引用本页
ScholarGate. (2026, June 1). Hurdle Model for Count Data. ScholarGate. https://scholargate.app/zh/statistics/hurdle-model
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