Statistica Afacerilor: Aplicaţii, partea a cincea (Business Statistics: Exercises, Part 5)

R. Stefanescu, Ramona Dumitriu
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引用次数: 0

Abstract

Romanian Abstract: Uneori, evoluţiile variabilelor economice sunt caracterizate prin fluctuaţii sezoniere semnificative care pot estompa celelalte componente ale seriilor de timp. În astfel de situaţii se recomandă identificarea şi înlăturarea componentelor sezoniere. Această lucrare prezintă o tehnică simplă de ajustare sezonieră pe baza modelului aditiv al seriilor de timp. English Abstract: Sometimes, the evolutions of the economic variables are characterized by significant seasonal fluctuations that could blur the other components of times series. In such situations it is recommended the seasonal components to be identified and removed. This paper presents a simple technique of seasonal adjustment based on the additive model of time series.
罗马尼亚文摘要:经济变数的演化具有明显的局部波动特征,可作为时间序列的重要组成部分。在这种情况下,我们建议识别和全面监测频率组件。它还提供了一种简单的方法,利用时间序列的附加模型来调整频率。英文摘要:有时,经济变量的演变具有显著的季节性波动特征,这可能会模糊时间序列的其他组成部分。在这种情况下,建议识别并去除季节性成分。本文介绍了一种基于时间序列加法模型的简单季节调整技术。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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