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应用改进的投影寻踪技术建立乌桕发展区域评价模型,可把多维分类指标综合成一维投影值。投影值越大,表示该区域乌桕发展潜力越大,因此,可以根据投影值的大小,对乌桕发展区域样本集进行合理区划。改进的投影寻踪技术用于乌桕发展区域分级与区划,投影寻踪效果理想,简单可行,可操作性强。通过由样本数据驱动的改进的投影寻踪技术,建立福建省乌桕发展区域评价模型,并结合聚类分析进行等级划分,区划出乌桕树种发展的中心区、适宜区和边缘区。
Applying the improved projection pursuit technology to establish the evaluation model of the development area of Urimba, the multidimensional classification index can be integrated into one-dimensional projection value. The larger the projection value, the greater the potential for development of this species. Therefore, a reasonable zoning can be made to the sample set of the development region of Wuyi according to the projection values. The improved projection pursuit technology is used to develop the regional classification and zoning in Uighur. The projection pursuit is effective, simple and feasible. Through the improved projection pursuit technology driven by the sample data, the evaluation model of Wujian development area in Fujian Province was established and classified by cluster analysis. The central area, suitable area and marginal area of the development of Wuzhu tree species were identified.