The effect of deep tube well use on the incidence of childhood diarrhoea was assessed using a random effects negative binomial regression model.

采用随机影响负二项回归模型，评估深管井的使用对儿童发生腹泻的影响。

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In this paper we investigated optimal linear unbiased estimation of the linear estimable function in general multivariate random effect linear model.

本文研究了一般的随机效应多元线性模型中线性可估函数的最优线性无偏估计。

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By experimentation, this model could describe the indefinite and random character of customers' behavior impersonally and also has good segmentation effect.

经试验验证，该模型能够更加客观地描述客户行为的非确定性和随机性特征，具有良好的分类效果。

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