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In this paper, the discriminant categorization on complex material and variable structure system life are given, and there are two kinds of variable structure on complex material system life based on the empirical data and the simulating data and the evaluating and analyses rooted in actual system. Here, according to the two kinds of variable structure with the corresponding data, complex material system lives are categorized based on principal component analysis and classification discriminant analysis, and the front is used to predigest data, the latter is used to categorize data. Thus, the system life data might be categorized as the two kinds of variable structure with runtime and environment based on system life indexes, the precise radio is , and the misjudged radio and the undetermined ratio are summed as 20%.

Discriminant Analysis on Complex Material and Variable Structure System Life