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本文将用建立慢重肝预后模型的过程 ,指出使用逐步判别分析的SAS程序设计存在的问题 ,并给出任何条件下都可实现的逐步Fisher判别模型。
This article will use the process of establishing a model of chronic severe liver prognosis and point out the problems of SAS programming using stepwise discriminant analysis and give a step by step Fisher discriminant model that can be implemented under any conditions.