摘要
地球化学变量的选择对于地球化学异常评价、指示元素的确定具有重要意义,本文介绍了无响应变量的因子分析最优变量组合的选择方法.其基本原理是构造最优变量组合使其代表原始变量因子模型的绝大部分信息,并保持其因子结构的基本构型。我们利用该法进行某铅锌矿床地球化学异常评价的变量选择,取得较好效果。
The selection of variables in geochemical data is important. In this paper, we. discussed some models in the variable selection of factor analysis. The best variable combination can be selected as step regression. The basic principle is that the best variable combination can include most information of the.original data,and the loss of information in deleting same variables is least. At last, a example 'of geochemical exploration data was studied.
出处
《物探化探计算技术》
CAS
CSCD
1993年第1期39-43,共5页
Computing Techniques For Geophysical and Geochemical Exploration
