在R中绘制数据集的CDF [英] Plotting CDF of a dataset in R?

问题描述

我不太清楚CDF（累积分布函数）和ECDF（经验累积分布函数）之间的区别，但是我通常使用CDF图来对我的数据进行观察。

我最近一直在使用R，并拼命地试图找出如何绘制我的数据的CDF和CCDF（补充CDF）。我可以找到的是，R有ecdf，但我不确定这是否正在寻找。绘制ECDF是简单的：

  plot.ecdf（data）
  / pre> 
 
 
有谁知道如何使用R？绘制数据集的CDF和CCDF？
解决方案
当您知道或假设发行时，CDF通常需要封闭表单。另一方面，ECDF是来自您的数据的经验性。我刚刚回答了一个关于使用 ecdf（）和 Hmisc 的 Ecdf（）这里另一天。 
 
 
 
更一般地，您可以使用诸如
 搜索框中的[r] ecdf 
  
在R标签中查找ecdf。在 rseek.org 上，ccdf很少出现。这可能与一个减去ECDF相同吗？如果是这样，Hmisc中的 Ecdf（）可以做到。
 
 
 
我希望这有助于，说出你的问题，因为它不是很清楚你正在寻找什么。  ecdf（）和 Ecdf（）非常有用，所以请务必阅读他们的帮助页面。
 
I am not really sure about the difference between CDF (Cumulative Distribution Function) and ECDF (Empirical Cumulative Distribution Function) but I usually utilize a CDF plot to make observations about my data. 

I have been using R recently and am desperately trying to find out how to plot a CDF and CCDF (Complementary CDF) of my data. All I could find was that R has ecdf but am not really sure if this is what I am looking for. Plotting an ECDF is as simple as:
plot.ecdf(data)
Does anyone know how to plot a CDF and CCDF of a dataset using R?
解决方案
A CDF commonly requires closed form when you know or assume a distribution.  An ECDF, on the other hand, is 'empiricial' as it comes from your data.  I just answered a question about using ecdf() and Hmisc's Ecdf()   here the other day.  

More generally, you can search here using terms such as
 [r] ecdf
in the search box to look for 'ecdf' within the R tag.   At rseek.org, little comes up for 'ccdf'. Is that maybe just the same as one minus the ECDF? If so, Ecdf() in Hmisc can do it.

I hope this helps, if not please re-phrase your question as it is not quite clear exactly what you are looking for. Both ecdf() and Ecdf() are pretty featureful so make sure to read their help pages.

                        
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