Sentences with phrase «nonstationarity in»
We apply fluctuation analysis, and detrended fluctuation analysis which can systematically overcome nonstationarities in the data, to evaluate the models accordingto their ability to reproduce the proper fluctuations and trends in the past and compare the results with the future prediction.
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Because the preliminary examination suggested evidence of nonstationarity and autocorrelation in these series, models were chosen to account for such conditions accordingly.
In case anyone is left wondering why I had to devise a means of eliminating the middle man (wavelets): It's because of the nonstationarity.
On a tangent allow me to compliment for your brilliant paper «Nonstationarity versus scaling in Hydrology, 2005».
Processes with consistently positive autocorrelation functions lead to large and long «excursions» from the mean as shown in Fig. 12 (lower panel), which often tends to be interpreted as nonstationarity.
Literally, claims of nonstationarity can not stand unless the evolution in time of the statistical characteristics of the process is known in deterministic terms not only for the past, but also for the future in particular.
Nonstationarity of error terms is a serious problem in time - series analysis, but I don't have a good sense of how well this issue has been treated in climate analysis.