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是否有用于为给定列表创建CDF的CPAN模块？

[英]Is there a CPAN module for creating the CDF for a given list?

原文 2010-11-03 19:44:58 7 2 perl/ statistics/ cumulative-sum

It's not too difficult to implement, but it seems like Cumulative distribution function is a very basic Statistics::Descriptive function, doesn't it? 实现起来不是很困难，但是累积分布函数似乎是一个非常基本的Statistics::Descriptive函数，不是吗？

It seems Statistics::Descriptive::Weighted has it, but using Weighted (with equal points to all data...) instead of the simpler Statistics::Descriptive seems to have a large overhead. 似乎Statistics::Descriptive::Weighted拥有它，但是使用Weighted （所有数据的点均相等...）而不是更简单的Statistics::Descriptive似乎有很大的开销。

2 个解决方案

There is Statistics::KernelEstimation . 有Statistics :: KernelEstimation 。 I have not used it but it looks OK. 我没有用过，但看起来还可以。

Using Statistics::Descriptive::Weighted , you can omit the weights and each point will be assigned a unit weight by default. 使用Statistics :: Descriptive :: Weighted ，您可以忽略权重，默认情况下，将为每个点分配一个单位权重。

A CPAN search came up with this: PDL::GSL::CDF . CPAN搜索得出了这样的内容： PDL::GSL::CDF 。 Its part of the PDL , the Perl Data Language (though this CDF module makes use of the GNU Scientific Library ). 它是PDL一部分， Perl数据语言 （尽管此CDF模块使用了GNU科学库）。