摘要
进出口贸易可以促进经济总量增长,是拉动国民经济发展的重要力量。本文选择固定资产投资总额、社会消费品零售总额、财政支出、地区生产总值、城镇常住居民人均可支配收入和人民币对美元汇率这六个因素,使用R语言借助多元线性回归模型分析其对进出口总额的影响,并通过检验对模型进行改进。根据实证分析的结果,提出相应的对策建议。
Import and export trade can promote the total economic growth,and is an important force to promote the development of national economy.In this paper,six factors are selected:total investment in fixed assets,total retail sales of social consumer goods,fiscal expenditure,gross regional product,per capita disposable income of urban residents and exchange rate of RMB to us dollar.R language is used to analyze its influence on total import and export with the help of multiple linear regression model,and the model is improved by testing.According to the results of empirical analysis,the corresponding countermeasures and suggestions are put forward.
作者
沙静
杨扬
曾巩俐
SHA Jing;YANG Yang;ZENG Gong-li(College of Computer Science and Engineering,Shandong University of Science and Technology,Qingdao 266590,China)
出处
《软件》
2020年第10期256-259,共4页
Software
