四、判别分析1、问题的提出表1和表2为某地矽卡岩型铜矿上14个已验证异常中Cu、Ag、Bi的几何平均值.表1为7个见矿异常,表2为7个未见矿异常.现在,要对当地一些未验证的异常作出判断:哪些可能见矿,哪些可能不见矿.例如,有一异常各元素的几何平均值(r/g)为Cu880,Agl.41,Bi34.4.如果利用单个元素分别对比,很难判断它属哪一类异常.利用判别分析,就可以帮助解决这类问题.因为判别分析可以提供一个界限,如未 DISCUSSION AND ANALYSIS 1. PROBLEM PROBLEMS Table 1 and Table 2 show the geometric mean values ​​of Cu, Ag and Bi in 14 validated anomalies on a skarn copper mine in a certain place. Table 1 shows the results of seven mine anomalies, For example, the geometric mean (r / g) of anomalies for each element is Cu880, and for some of the anomalies, Agl.41, Bi34.4. If you use a single element of contrast, it is difficult to determine what kind of anomaly it.Use discriminant analysis can help solve these problems.Due to discriminant analysis can provide a limit, if not