Seasonal Adjustment and Other Data Transformations
季节调整与其他数据变换AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要直接讨论季节调整、信号提取及线性滤波的实施顺序,提供了归入时间序列方法方向的明确依据。
反馈分类问题季节调整与其他数据变换AI 解读 ↓
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In this paper, it is shown that the case for using optimal signal extraction filters is not all that convincing once it is recognized that seasonal adjustment is typically not the only transformation applied to data. Seasonal adjustment is viewed as any general linear filter. All other data transformations are also assumed to be linear. While optimal filters always dominate uniform filters, their dominance critically depends on performing seasonal adjustment and the other data transformations in the right sequence. The conclusions of the author's paper make a strong case in favor of the wide practice of uniform filtering.