逐步对应分析方法及其在矿产资源评价中的应用

The Method of Stepwise Correspondence Analysis and Its Application in Mineral Resources Evaluation

对应分析是与因子分析、主成分分析相类似的方法,它们都不包含响应变量,特别适用于定性数据或频率数据。这类方法的变量选择和样品选择的问题相当重要,针对矿产资源预测中模型单元的变量和预测单元的变量不平衡性,本文提出了"逐步对应分析"方法,解决了一类不含响应变量统计模型的变量和样品的选择问题,并讨论了样品和变量的最佳配置问题。

The method of correspondence analysis is similar to factor analysis and main-composition analysis, which do not contain response variable,and are most applicable to qualitative data or frequency data. It is very important for this type method to select variables and samples.In view of the unequilibrium of variates between model units and prediction units in mineral resources prediction,this paper puts forward the method of stepwise correspondence analysis,which has solved the problem caused by choosing variates and samples in the statistical model with an irresponding variates,and discusses the optimum allocation of samples and variates.