Sentence examples for removing the trend from inspiring English sources

In this sense the HP filter is a highpass filter, removing the trend and returning high-frequency components in z t.

Thus, the motivation for the filtering is to extract the trend in a manner that is less sensitive to the endpoint problem – which we do with the HP filter, as well as a more brute-force way of removing the trend using peak-to-peak comparisons and including non-linear state-specific trends.18.18

The coherence between the geoelectric field and the geomagnetic field suggests that the residual is mostly induced by the geomagnetic field variations, and that the signal-to-noise ratio is largely recovered by removing the trend (Figure 7). Figure 6 The northward geoelectric field from 1 January 2002 to 31 December 2005 at Kakioka.

At Facebook, Hardiman was involved in a variety of projects, including removing the trending feature and launching Facebook Watch.

To utilize the amplitude of the X phase, we removed the trend by subtracting the theoretical envelope from the original.

We removed the trend by first applying a cubic spline fit on the data and second subtracting the original data from the fitted values.

When the observed time series presents a trend and heteroscedasticity, differencing and power transformation are applied to the data to remove the trend and stabilize the variance before the ARIMA model can be fitted.

Some have suggested that to remove the trend, the terms may be specified in first differences, which often yields results showing that the effect of public capital is small, sometimes negative, and generally not statistically significant (Munnell 1992; Gramlich 1994).

It should be noted that if we do not remove the trend, the ionospheric current is always roughly westward because the X component is always negative during these intervals (Fig. 2).

To eliminate spatiotemporal variations of the regular ionosphere, as well as trends introduced by orbital motion of the satellite, a procedure is used to remove the trend with the selected time window (10 min) involving a preliminary smoothing of the initial series (the time window 2 min).

The percentage change in DDD/1000pop/day was used to remove the trend component of the time series before fitting into ARIMA models.