Based on 10 years of statistics concerning economic development in Xi'an as the main part of Guanzhong-Tianshui Economic Zone, this article builds the main indicator system to reflect economic development. Using two mathematical methods (principal component analysis and cluster analysis), we carry out comprehensive evaluation analysis of the main economic indicators, point out the distribution differences in the economic development level in this region, and make classification, in order to provide a scientific basis for the decision-making body to lay down the relevant economic development strategies in accordance with the economic development level and geographical location.


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