基于南充市生产总值(GDP)的灰色预测与因素分析

The Grey Prediction and Factors Analysis Based on the Gross Domestic Product (GDP) of Nanchong

本文对2005-2012年南充市生产总值(GDP)、第一、二、三产业的增加值的数据进行了分析,根据数据的特征,采用灰色GM(1,1)模型对四类数据建立了预测模型,获得了较高的精度,并利用灰色关联分析,分析了南充市各产业增加值对GDP的影响程度.

The data of gross domestic product（GDP） in Nanchong,the increase values of first,second and third industry have been analyzed. According to the features of the data,the GM（1,1） model for the four types of data have been established in this paper. The result is given to show that the precision of these model is high. The influence of the increase values of first,second and third industry on the GDP in Nanchong has been analyzed by grey incidence analysis.