期刊文献+

玉米需求总量及其结构预测方法准确度比较

A Comparison of Accuracy Between Total Forecast and Structure Prediction of Corn Demand
下载PDF
导出
摘要 在分析国内代表性玉米需求预测文献的基础上,重点对其预测值与观测值的误差进行计算,并用方差分析比较玉米总需求预测和需求结构预测的误差。结果显示,玉米需求结构预测方法的准确度更高。对玉米需求结构进行预测,能更直观地反映中国玉米的需求结构及变化趋势,清晰各部分预测误差大小,便于日后调整预测方法,从而提高精度。 Based on analysis of representative domestic literatures related to the corn demand forecast, the deviations between predicted and observed values were emphatically calculated, and the errors between total demand forecast and structure de-mand prediction were compared with ANOVA. The results showed the accuracy of structure forecast was higher than that of total forecast. The forecast of corn demand structure could not only more directly present its tendency in China, but also clearly reflect the values of each error. So it would be favorable for the future adjustment of forecast method, so as to en-analysis of variancehance prediction accuracy.
出处 《湖北农业科学》 2017年第13期2597-2601,共5页 Hubei Agricultural Sciences
基金 中央高校基本科研业务费专项基金资助项目(2662016PY060) 国家自然科学基金项目(71673102)
关键词 玉米 总需求预测 需求结构预测 误差 方差分析 corn demand structure forecast error
  • 相关文献

参考文献12

二级参考文献55

共引文献136

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部