利用泰州市2003—2009年流动人口数据,建立GM(1,1)模型、残差GM(1,1)模型和等维递补GM(1,1)模型对流动人口数量进行预测。并用多种方法检验了三种模型的拟合效果。结果表明三种模型均能合理地对流动人口数量变化进行预测,但残差GM(1,1)模型和动态等维递补GM(1,1)模型拟合效果优于一般的GM(1,1)模型。
According to the data of the floating population of Taizhou from 2003 to 2009,establish GM(1,1) model,remaining GM(1,1) model and the model of equivalent dimensions additional GM(1,1) for prediction and test the fitting results of the three models in several ways.The results show that these three models all could predict the the floating population,but the remaining GM(1,1) model and the model of equivalent dimensions additional GM(1,1) fitted better than the ordinary GM(1,1) model.