结果：指标变量经聚类变换后，资料总体更接近于正态分布。

Results: After variate transformation by clustering, the data was more similar to normal distribution.

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指标体系结构分为三个层次：目标层、类指标层、指标变量层。

The criteria system was made of three layers: target, category criteria and criteria.

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样本主成分和样本因子分析法已成为一种最主要的综合评价方法之一，指标变量的同趋势化是运用该方法的重要步骤。

Sample principal component analysis and factor analysis has been one of the main methods of composite analysis, the communalities of variables is a key step of using these methods.

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