Sentences with phrase «calculate trend magnitude»

The package uses an efficient implementation of Sen's slope method (Sen, 1968) to calculate trend magnitude and provides two options for removing lag - 1 autocorrelation (the correlation of a given time series with its own earlier values) and computing the significance of trend: Xuebin Zhang's (Zhang, 1999) and Yue - Pilon's (Yue, 2002).

Not exact matches

The magnitude of each relative changepoint is calculated using the most appropriate two - phase regression model (e.g., a jump in mean with no trend in the series, a jump in mean within a general linear trend, etc.).

In publishing Dr Brown's opinion, but refusing to publish Dr Marohasy's rebuttal, the Sydney Morning Herald is continuing to withhold important information from the Australian public, in particular most Australians remain ignorant of the fact that all the data used to calculate national temperature trends is homogenised, that this can have an impact on both the magnitude and direction of temperature trends.