摘要
基于灰色预测法,建立相应的GM(1,1)残差预测模型。选取2016—2019年宁波市港口指数数据,对2020年2月和3月份宁波市港口景气指数和企业信心指数进行预测,并将预测值与港口指数真实值进行比较。结果表明:2020年2月和3月份宁波市港口指数有所提升,港口发展趋势良好。
Based on the grey prediction method,this paper established the corresponding GM(1,1)residual prediction model,selected the 2016-2019 Ningbo port index data,forecasted the Ningbo Port prosperity index and enterprise confidence index in February and March 2020.It also compared the real value of the port index with the predicted value.The results showed that in February and March 2020,Ningbo port index had been improved and the development trend of the port was good.
作者
黄健钦
周志丹
HUANG Jian-qin;ZHOU Zhi-dan(Zhejiang Wanli University,Ningbo Zhejiang 315100)
出处
《浙江万里学院学报》
2020年第5期9-14,共6页
Journal of Zhejiang Wanli University
基金
浙江省高等教育“十三·五”第一批教学改革研究项目(jg20180256)。
