The forecasting result shows that season and trend mode is an effective and feasible load forecasting method.
预测结果表明季节和趋势预测模型是一种有效和可行的负荷预测方法。
This paper introduce the forecasting method of trend envelope totally, and based on the old data, the Heilongjiang Provice agriculture machinery total power prediction is carried on with the method.
文中对趋势包络预测方法进行了详细介绍，并应用此方法，依据历年的数据对黑龙江省农机总动力进行了预测。
Especially on the quantitative forecast aspect, forecast the urban land expansion by method of factor forecasting, method of trend extrapolating and method of ca model from different Angle.
特别是在定量预测方面，从不同角度运用因素预测法、趋势外推法、CA模型法等三种方法对城市用地扩展进行估算。
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