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星座图和连接向量图是多维数据点图法中的两种方法,即把地质、地球化学找矿评价中所取得的多维数据表示在一张图上,具明显直观的特点. 星座图是把样品的各变量值表示在半圆内,很象天文学上表示星座的图象.根据各样品在图中星座的接近程度以及路径的差异来确定样品的相似程度、组分特征,以解决样品的分类.还可根据已知样品对未知样品进行分类评价. 连接向量图是用来表示一个因变量与一组自变量关系的回归分析数据.它是对变量而言.可用图型来研究因变量与自变量之间,自变量之间的关系.它能对变量分类,研究变量组合之间的关系,对地
Constellation and connection vector diagrams are two methods in multidimensional data point graph method, that is to say, the multidimensional data obtained in geological and geochemical prospecting evaluation are shown on a graph with obvious and intuitive features. The value of each variable in the sample is represented in a semicircle much like the image of a constellation in astronomy, and the degree of similarity and the composition of the sample are determined according to the proximity of the constellation of each sample in the figure and the difference in the path to resolve the classification of the sample .It is also possible to classify unknown samples based on known samples, which are used to represent the regression analysis of the relationship between a dependent variable and a set of independent variables.It is a variable that can be used to study the relationship between dependent variable and Independent variables, the relationship between independent variables.It can classify variables, study the relationship between variables, on the ground