Objective: to investigate the optimal time window for minimally invasive aspiration and drainage of the hematoma in patients with intracerebral hemorrhage.
目的:观察微创血肿碎吸引流术联合尼莫地平对高血压性脑出血患者的疗效。
The problem of estimating time-varying parameters of econometric models is discussed, by analysing the normal moving window method. A new estimation method-optimal moving window method is proposed.
本文在分析普通移动窗法的基础上,对计量经济模型的时变参数估计问题,提出了一种新的估计方法—最优移动窗法。
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