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      简单统计 - 用于计算平均值、标准差等的 Java 包

      时间:2023-09-27
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                本文介绍了简单统计 - 用于计算平均值、标准差等的 Java 包的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

                问题描述

                您能否推荐一些简单的 Java 统计数据包?

                Could you please suggest any simple Java statistics packages?

                我不一定需要任何高级的东西.我很惊讶 java.lang.Math 包中似乎没有计算平均值的函数...

                I don't necessarily need any of the advanced stuff. I was quite surprised that there does not appear to be a function to calculate the Mean in the java.lang.Math package...

                你们用什么来做这个的?

                What are you guys using for this?

                编辑

                关于:

                写一个简单的类有多难计算均值和标准的偏差?

                How hard is it to write a simple class that calculates means and standard deviations?

                嗯,不难.我只是在手工编码后才问这个问题.但是,当我需要这些最简单的功能时,手头没有这些功能,这只会增加我的 Java 挫败感.我不记得用心计算标准差的公式了:)

                Well, not hard. I only asked this question after having hand-coded these. But it only added to my Java frustration not to have these simplest functions available at hand when I needed them. I don't remember the formula for calculating stdev by heart :)

                推荐答案

                Apache Commons Math,具体来说DescriptiveStatistics 和 SummaryStatistics.

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