The Clustering Analysis for the Urbanization Level Based on Nonlinear Mapping Analysis

The urbanization levels of districts are evaluated by the method of nonlinear mapping analysis.The results are visually showed in two-dimensional surface.The map obtained by nonlinear mapping analysis could well represent the classification of different cities with different levels and the results are much better than that obtained by system cluster analysis.The nonlinear mapping method overcome the shortcomings such as not showing the result directly and clustering cities incorrectly.A new and reasonable approach to evaluate the urbanization level is developed.