zyp(zyp)
zyp()所属R语言包：zyp
ZYP Prewhitened Nonlinear Trend Analysis Package
ZYP Prewhitened非线性趋势分析软件包
译者：生物统计家园网 机器人LoveR
描述----------Description----------
This function includes two approaches to analyze for trend, the Zhang method and Yue and Pilon method. These differ in their approach to pre-whitening to removing lag-1 autocorrelation. The magnitude of the trend is computed using the Theil-Sen approach (TSA).
此功能包含两个方法来分析趋势，张某方法，越皮隆方法。这些不同的方法预白化，以消除滞后的自相关。计算使用的泰尔森的方法（TSA）的大小趋势。
In the Zhang method, trend is removed from the series if it is significant and the autocorrelation is computed. This process is continued until the dfferences in the estimates of the slope and the AR(1) in two consecutive iterations are smaller than 1 percent. The Mann-Kendall test for trend is then run on the resulting time series and TSA is used to compute the slope of the trend.
在张的方法，从系列中删除的趋势，如果这是显着的和计算的自相关。这个过程继续，直到在估计的斜率dfferences和AR（1）在两个连续的迭代是小于1％。 Mann-Kendall检验趋势上运行的时间序列和TSA被用来计算趋势的斜率。
In the Yue and Pilon method, the slopes is estimated with the TSA, if almost equal to zero, then its is not necessary to conduct the trend analysis. If it differs from zero, then it is assumed to be linear and the data is detrended by the slope and the AR(1) is computed for the detrended series. This is referred to as the Trend Free Pre-whitening (TFPW) procedure. The residuals should be an independent series. The trend and residuals are then blended together. The Mann-Kendall test is the applied to the blended series to assess the significance of the trend.
斜坡的在乐和皮隆方法，估计该协议，如果几乎等于零，那么它是没有必要进行趋势分析。如果它不同于零，则它被认为是线性的，数据被去趋势的斜率和AR（1）计算为除趋势系列。这被称为的趋势免预白化（TFPW）程序。残差应该是一个独立的系列。的趋势和残留物混合在一起。 Mann-Kendall检验的混纺系列的趋势，评估的意义。
参考文献----------References----------
<CITE>Wang, X.L. and Swail, V.R., 2001. Changes in extreme wave heights in northern hemisphere oceans and related atmospheric circulation regimes. Journal of Climate, 14: 2204-2221. </CITE>
<CITE>Yue, S., P. Pilon, B. Phinney and G. Cavadias, 2002. The influence of autocorrelation on the ability to detect trend in hydrological series. Hydrological Processes, 16: 1807-1829.</CITE>
<CITE>Zhang, X., Vincent, L.A., Hogg, W.D. and Niitsoo, A., 2000. Temperature and Precipitation Trends in Canada during the 20th Century. Atmosphere-Ocean 38(3): 395-429.</CITE>
参见----------See Also----------
zyp.trend.csv, zyp.trend.vector.
zyp.trend.csv，zyp.trend.vector。
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注：
注1：为了方便大家学习，本文档为生物统计家园网机器人LoveR翻译而成，仅供个人R语言学习参考使用，生物统计家园保留版权。
注2：由于是机器人自动翻译，难免有不准确之处，使用时仔细对照中、英文内容进行反复理解，可以帮助R语言的学习。
注3：如遇到不准确之处，请在本贴的后面进行回帖，我们会逐渐进行修订。
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发表于 2012-10-2 07:55:13
