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词汇 differencing
释义 BETA

Examples of differencing


differencing isn’t in the Cambridge Dictionary yet. You can help!
Thus, individually, the series would not be forecasted easily and the conventional wisdom of several years ago would have dictated first differencing each series.
The identification process involves estimating the fractional differencing parameter d and its standard error for each series.
But after first differencing, the null hypothesis of non-stationarity is rejected and the alternative hypothesis of stationarity be accepted.
A time series that is a polynomial trend plus stationary noise can be transformed into a stationary process by successive differencing.
After differencing, 15,814 observations from 2,739 firms remain in the sample.
Central differencing was used to eliminate artificial dissipation and false damping.
The differencing is first-order in the x direction and second order in the 7 and 4 directions.
This proof relies on the recurrence relations in question and uses only suitable differencing arguments.
In such cases, differencing or cointegration methods are required to obtain unbiased estimates and standard errors.
As the spatial differencing used here is only first order accurate, large meshes are required in order to achieve convergence.
All terms in the governing equations, apart from the advection terms and the convection coefficients, were spatially discretized using second-order centered differencing.
Second-order differencing is used to express the pressure-gradient and mass-flux terms.
The code uses fourth-order-accurate differencing schemes in the streamwise direction, which generate oscillations when a sharp interface is encountered.
The assumed trend was removed by (second) differencing the data.
We can extend our differencing method to describe the limiting distribution of the cost measures of this algorithm.
However, as with other approaches that employ spectral differencing, artifacts in the difference spectrum can complicate the analysis.
We transformed the level series into growth rates by taking natural logarithms and then first differencing.


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