一、方法的陈述自从本世纪三十年代 ARMA 混合模式问世以来,在时间序列分析和预测中,它日益成为一种重要而经常使用的手段。和时间序列其他预测方法相比较,这种方法具有相当的灵活性和优越性。它不仅可以拟合各种不同的数据样式,通过若...一、方法的陈述自从本世纪三十年代 ARMA 混合模式问世以来,在时间序列分析和预测中,它日益成为一种重要而经常使用的手段。和时间序列其他预测方法相比较,这种方法具有相当的灵活性和优越性。它不仅可以拟合各种不同的数据样式,通过若干次迭代获得最佳参数估计值;展开更多
For the sustainable development and attention on the environment and energy, the study on the energy effective is important to the theory and the practice. The regional characters of china 31 provincial economic devel...For the sustainable development and attention on the environment and energy, the study on the energy effective is important to the theory and the practice. The regional characters of china 31 provincial economic development and energy effective were analyzed through the spatial statistical model and Moran I index to Panel Data, It is concluded that the provincial regional economic development and energy effective have obvious spatial correlation and cluster in the geographical space, the latter is influenced by its own economic development and the energy effective of neighbor region, so traditional ignoring the point will lead to deviation of model design and the deflection of the result.展开更多
文摘For the sustainable development and attention on the environment and energy, the study on the energy effective is important to the theory and the practice. The regional characters of china 31 provincial economic development and energy effective were analyzed through the spatial statistical model and Moran I index to Panel Data, It is concluded that the provincial regional economic development and energy effective have obvious spatial correlation and cluster in the geographical space, the latter is influenced by its own economic development and the energy effective of neighbor region, so traditional ignoring the point will lead to deviation of model design and the deflection of the result.
