问题描述
我需要以3D方式绘制一组与时间序列相关的密度。更准确地说，我希望能够在R中构建接近此示例的图像
I need to plot, in 3D, a set of densities associated to a time series. More precisely, I would like to be able in R to build an image close to this example
此图片摘自[1]。透明度起着重要作用，因为我们可以看到xy平面中度量的轨迹。
This image is taken from [1]. The transparency plays an important role as let us see the trajectory of the "measures" in the x-y plane.
任何帮助将不胜感激。
[1]：Juban和Kariniotakis，风电预测的不确定性估计，在EWEC 2008年4月1日在比利时布鲁塞尔举行。 （我无法发布链接，谷歌将帮助感兴趣的读者。）
[1]: Juban and Kariniotakis, "Uncertainty Estimation of Wind Power Forecasts", presentation at EWEC 2008 - 01 April - Brussels, Belgium. (I can't post the link, google will help interested readers).
推荐答案
1996年，我写了一篇论文（发表于JCGS），其数字与该数字非常相似，但没有透明度。参见获取详细信息。绘图功能在CRAN上的R包中实现。该软件包在帮助文件中包含一些示例。您应该能够修改我的代码以增加透明度。
In 1996 I wrote a paper (published in JCGS) with a figure very similar to that but without the transparency. See http://robjhyndman.com/papers/estimating-and-visualizing-conditional-densities/ for the details. The plotting function is implemented in the R package hdrcde available on CRAN. The package contains some examples in the help files. You should be able to adapt my code to add the transparency.
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