the grey gm(1, n) model is used to establish the gm(1,3) model with three variables in one rank by bringing the two factors, industrial output value and population, into the gas load prediction model.
应用灰色gm(1,n)模型,将工业产值和城市人口两个因子引入燃气负荷预测模型,建立一个一阶3个变量的灰色gm(1,3)模型,进行预测。