中文摘要：

在回归分析建模中,变量选择是重要的热点研究问题,在回归模型中应该保留对响应的影响最显著的变量.变量选择在分析实际经济问题中得到广泛的应用.文章以混料模型为基础,主要研究混料模型中的变量选择问题.

英文摘要：

Variable selection is an important and hot research problem in the model of regression analysis,which could retain the most significant impact in regression model.Variable selection is widely applied to the analysis of economic problems.On the basis of mixture model,variable selection for mixture model is mainly studied in this paper.