嘿!
今天,我想开始一系列有关使用R进行极值分析的文章。
基本上,R中有几个非常有用的软件包,它们提供了极值分析的方法和功能。当然,可以在以下位置找到有关用于极端价值分析的不同软件(包括所有相关的R软件包)的信息。 R关于极值分析的任务视图 以及 埃里克·吉兰’s website。此外,吉勒兰,里巴特&斯蒂芬森已经出版 用于极值分析的软件审查 回顾2012年,其中提供了与此主题相关的最重要的软件工具的全面概述。
Even though there are several R包 that provide nice solutions for different estimation methods (e.g. maximum likelihood fitting, L-moments estimation, Bayesian estimation methods), different approaches (i.e. block maxima method or peak over threshold method) or different tasks (e.g. calculation of return levels/periods, simulation, use of copulas, assessment of non-stationary time series, multivariate analyses), I reckon that the extRemes
package contains most of the relevant methods for performing a sound 极值分析. fevd{extRemes}
is a very powerful (albeit imho barely readable) function that allows us to apply the most common methods for distribution fitting and parameter estimation.
Apart from the extRemes
package, I can recommend the package fExtremes
, which is developed by 度量 主要针对极端金融市场数据进行分析。它包含一些编写良好,有用的功能。
In addition, the ismev
package, which is based on Stuart Coles’ book 极值统计建模简介,提供了执行极值分析的许多基本方法,并且特别适合与Coles一起研究该主题’ book.
我将准备一些示例,涵盖块最大值和峰值超过阈值方法以及最重要的估计方法。
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干杯,
马蒂亚斯
3条留言
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非常有趣的话题!我很好奇,非常期待这个新细分市场!
马丁 6年前
图书馆evir呢?阿斯洛向前看!
高汗 6年前
As a matter of fact there are several useful R包 featuring tools for 极值分析. Even though packages like
evir
,evd
,fExtremes
,lmom
,POT
,ismev
, etc. are nice packages,extRemes
is my package of choice in most cases. While its clear and simple structrue also allows beginners to get in touch with 极值分析 (which is in fact the intention of my posts), it is also a very comprehensive package as far as the implemented methods are concerned. Thus, it is also a good tool for advanced users. Nevertheless, other packages may provide better options for certain tasks, which is why I switched to usingfExtremes
lately.马蒂亚斯 6年前
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