Sentences with phrase «stationarity which»

Not exact matches

Perhaps much of your nonsense is rooted in the fact that you have confused «stationary» with having a «unit root» (which is what the Dickey - Fuller test is for, not for stationarity).

About stationarity — in time series analysis one simply must difference a variable if it is not stationary (unless it is cointegrated with another variable, which is not the case here).

GMST should have gone up 3/40 % = 1.2 C; GISS says 0.6 C over the period and of that 0.6 C TAR gives 0.4 C for solar, downgraded in AR4 to 0.2 C, leaving 0.4 C if ENSO stationarity is assumed, which is surely wrong.

«The equations (1), (2) and (3) represent the stationarity requirement that particles located in certain volume with certain velocities will at a later moment be replaced by an equal number of other particles which have the same velocities when the influence of gravity on velocity is taken into account.

There are now long enough time scales of data to test for the emergence of properties like stationarity and antipersistence which are implied by the intuitive meaning of climate.

However, revisiting the notions of stationarity and nonstationarity, which are defined within stochastics, we may understand that the terms are often abused.

«Consistent with previous analyses (see e.g. Montanari, 2012; Zanchettini et al., 2008),» they write, «our trend detection analysis, which we carried out on long historical series observed for the Po river, does not detect any evidence of a statistically significant change in the flood hazard along the Po river and supports the stationarity of the hydrological series during the period of interest (i.e., last five decades).»

Here lies the essence and usefulness of the stationarity concept, which seeks invariant properties in complex systems.»

Note that the whole purpose of that stochastic trend analysis (with plot) was to juxtapose your analysis (which assumes stationarity under the H0) with my analysis (which doesn't assume stationarity under the H0).

Future studies involving three (or more) time points in which the parental behaviors, EF and academic outcomes were measured at different time points would permit the underlying assumptions of stationarity and equilibrium to be tested formally (Cole and Maxwell, 2003).