Terms used in official statistics

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Decomposition of time series


Definition:

Decomposition of time series into all possible components, i.e. trend, seasonal variations and irregular (random) variations. Two main groups of decomposition methods are distinguished: 1) mechanical methods like usual and centered moving averages; 2) analytical methods which include least squares method.


Low-level terms:

Contact person on methodology:
GUS – Departament Programowania, Koordynacji Badań i Rejestrów
e-mail:
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