Przeglądaj Acta Universitatis Lodziensis. Folia Oeconomica nr 141/1997 według tematu "generalized variance"
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Decomposition of time series on the basis of modified grouping method of Ward
(Wydawnictwo Uniwersytetu Łódzkiego, 1997)The trend of time series can change its direction. It is assumed that the time interval is divided into subintervals where the trend is given as particular linear function. The problem is how to divide the observation ...