宁夏引黄灌区农村信息化主成分分析

Principal Component Analysis on Rural Informatization in Yellow River Irrigation Area of Ningxia

对宁夏扬黄灌区2007年农村传统信息化与其他影响因子之间利用主成分法进行分析,得出以下结论:影响宁夏灌区传统农村信息化有4个主成分,分别为及时信息因子、网络信息因子、通讯信息因子和人际交往因子。各主成分方差贡献率分别为33.4216%、31.6659%、16.5499%和7.6844%,累积贡献率达89.3281%,代表了农村信息化指标89.3281%的信息。

The influence factors of rural informatization in yellow river irrigation area of Ningxia in 2007 was analyzed by using principal component analysis method. The results showed that there were four principal factors affecting rural informatization in yellow river irrigation area of Ningxia. The variance eontribution rate of the four factors of real time information, web information, teleeornmunieation information and interpersonal communication information were 33.4216% ,31.6659%, 16.5499% and 7.6844%, respectively. Their accumulative contribution rate was reached 89.3281%, whieh mean the four components contained 89.3281% of the total information about rural informatization.