| 方向随机效果模型及其协方差结构 |
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| 引用本文： | 陈鸿建.方向随机效果模型及其协方差结构[J].四川大学学报(自然科学版),2004,41(5):921-927. |
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| 作者姓名： | 陈鸿建 |
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| 作者单位： | 四川大学数学学院,成都,610064 |
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| 摘 要： | 定义了方向随机效果模型(DREM)．这个模型是由随机效果Rasch模型发展而来．当连接函数是多项式或指数函数时，给出了DREM的协方差结构．当连接函数为一般形式时，给出了DREM的近似协方差结构．这些协方差结构和近似协方差结构与线性随机效果模型的协方差结构有相似的形式。
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| 关 键 词： | 协方差 随机 近似 一般形式 多项式 指数函数 线性 连接函数 h模型 |
Directional Random Effect Model and Its Covariance Structure |
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| Abstract.Directional Random Effect Model and Its Covariance Structure[J].Journal of Sichuan University (Natural Science Edition),2004,41(5):921-927. |
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| Authors: | Abstract |
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| Abstract: | The Directional Random Effect Model (DREM) is defined. The model is developed from random effect Rasch model. When the link function is a polynomial or an exponential function, the covariance structure of DREM is given out. When the link function is a general form, an approximate covariance structure of DREM is given out. These covariance structures and approximate covariance structure have the similiar form as the covariance structure of the linear random effect model. |
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| Keywords: | directional random effect model random effect Rasch model covriance structure |
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