The total income of national economy and the amount of population are predicted with second-degree moving model and with the principle of least mean square fit error determining designated value n.
利用二次移动平均模型,引入均方拟合误差最小的原理确定出时段数n,对国民经济总收入、人口数量等项目进行了预测。
Among both groups, the mean prebronchodilator FEV1 decreased from 3.14 l to 2.84 l, but the predicted value remained at exactly the same level of airway function (89% of predicted).
两组患者之间,支气管扩张剂使用前的FEV1平均值从3.14升减少到2.84升,但是预测值仍然恰好在气道功能的相同水平(89%预测值)。
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