...dump
The figures for variance and mean value do not correspond with the figures in table 1 because the time series was transformed using the $\nabla$ operator.

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© 1997 Gottfried Rudorfer, © 1994 ACM APL Quote Quad, 1515 Broadway, New York, N.Y. 10036, Abteilung für Angewandte Informatik, Wirtschaftsuniversität Wien, 3/23/1998