方法 采用自回归移动平均模型对出院人次进行模型拟合。

Methods Using the Autoregressive Integrated Moving Average Model to fit the change of numbers of discharged patients.

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经济周期的理论必然涉及经济周期长度的研究，相对于常用的自回归移动平均方法，谱分析方法具备一定的优点。

The theory of economic cycle involves the research on the length of economic cycle. Compared with the ARMA method frequency scale method has several advantages.

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本文采用自回归求积移动平均(arima)法，对《上海市统计年鉴2002》提供的固定资历产投资额资料进行了分析。

This paper applys ARIMA method to analyse data of the volume of investment in fixed assets of Shanghai. The data is provided by the Shanghai Statistical Yearbook (2002).

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