With the rapid development of the integration of the world economy, the two deltas, that is, the Yangtze River Delta and the Pearl River Delta have developed fastest and are the strongest and the most dynamic areas. The economic development of the two areas plays a most important role in the all-around development of China's economy. The paper introduces factor analysis and clustering analysis of multivariate statistical analysis to appraise the development status of the above two regions' economy, finds out the reason why the economic development is different in different clusters.
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