摘要
对由多因素构成的总体，依据多元正态理论，利用马氏距离Ｄ～２作为描述多元结构的综合指标，找出指定信度下的椭球面，进而分离出椭球面外的离群点，即被视为异常样品。依据这一理论及模式编制了相应的计算机程序，并对某区化探数据进行处理获得较好效果。这一方法在矿产资源预测、生态环境研究、气象研究等方面有较广的应用前景。
According to normal theory, an elliptic surface at a given fidelity may be set up using Mahalanodis distance as a comprehensive factor defining multivariant texture. Those off- group points beyond the surface are abnormal and thus picked out. Based on this model, a computer program has been drawn up. It has been applied to process successfully geochemicaI prospecting data in some area. It shows great promise in prognoses of mineral resources, ecologic environment researches, meteorological analyses, and so on.
关键词
多维超椭球面
离群点
计算机程序
化探数据处理
资源预测
Multivariate hyperelliptic surface, Off-group points, Computer program, To process of geochemical prospecting data, Prognoses of mineral resources.
