eofPlot(wq)
eofPlot()所属R语言包:wq
Plot results of an EOF analysis
图的EOF分析的结果
译者:生物统计家园网 机器人LoveR
描述----------Description----------
Plots the rotated empirical orthogonal functions or amplitude time series resulting from eof.
图旋转经验正交函数或振幅时间序列eof。
用法----------Usage----------
eofPlot(x, type = c('coef', 'amp'), rev = FALSE, ord = FALSE)
参数----------Arguments----------
参数:x
result of the function eof
导致的函数eof
参数:type
whether the EOF coefficients or amplitudes should be plotted
的的EOF系数,或振幅是否应绘制
参数:rev
if TRUE, coefficients and amplitudes are multiplied by -1
如果TRUE,系数和幅度乘以-1的
参数:ord
if TRUE, coefficients are ordered by size
如果TRUE,系数的大小排序
Details
详细信息----------Details----------
When the columns of the original data have a natural order, such as stations along a transect or months of the year, there may be no need to reorder the EOF coefficients. But if there is no natural order, such as when columns represents disparate sites around the world, the plot can be more informative if coefficients are ordered by size (ord = TRUE).
列的原始数据时有一种天然的秩序,如样带沿线车站或几个月的一年,也有可能是没有必要重新排序EOF系数。但是,如果没有自然顺序,例如,当列代表不同的网站在世界各地,图可以提供更多的信息,如果系数的大小排序(ord = TRUE)。
Coefficients and amplitudes for a given EOF may be more easily interpreted if rev = TRUE, because the sign of the first coefficient is arbitrarily determined and all the other signs follow from that choice.
对于给定的EOF系数和幅度可能会更容易解释,如果rev = TRUE,因为的第一个系数的符号是任意的和所有其他迹象遵循这样的选择。
The vertical guide lines at 0.2 and 0.35 are meant to reflect the Monte Carlo studies of Richman and Gong (1999): “For investigators who do not wish to reproduce a part of the Monte Carlo analysis for their research, the most general rule of thumb is that if there is a sufficient sample size, a correlation-based PC loading value of [plus or minus] 0.2-0.35 will likely suffice to separate the hyperplane out...” "Sufficient sample size" in this case refers to n > 50.
在0.2和0.35的垂直参考线是为了反映里奇曼,龚蒙地卡罗的研究(1999):“调查谁不希望重现的Monte Carlo分析他们的研究的一部分,最普遍的规则经验告诉我们,如果有足够的样本量,基于相关的PC [加或减负荷值0.2-0.35可能会足够分离超平面......“”有足够的样本量,在这种情况下,是指n > 50。
值----------Value----------
A plot of the EOF coefficients or amplitudes (and corresponding object of class “ggplot”).
一个图的EOF系数或振幅(以及相应的对象类“ggplot”)的。
参考文献----------References----------
参见----------See Also----------
eof
eof
实例----------Examples----------
# Create an annual matrix time series[每年创建一个矩阵的时间序列]
chla1 <- aggregate(sfbayChla, 1, mean, na.rm = TRUE)
chla1 <- chla1[, 1:12] # remove stations with missing years[删除站与失踪多年的]
# eofNum (see examples) suggests n = 1[eofNum(见例子)建议N = 1]
e1 <- eof(chla1, n = 1)
eofPlot(e1, type = 'coef')
eofPlot(e1, type = 'amp')
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注:
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