[jira] [Commented] (MATH-1490) Percentile computational accuracy issue

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[jira] [Commented] (MATH-1490) Percentile computational accuracy issue

Gilles (Jira)

    [ https://issues.apache.org/jira/browse/MATH-1490?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16914452#comment-16914452 ]

xia0c commented on MATH-1490:
-----------------------------

Hi Gilles,

 

The output is different when I update it, and it breaks my existing code. I got an incompatible error.

 

Thanks.

> Percentile computational accuracy issue
> ---------------------------------------
>
>                 Key: MATH-1490
>                 URL: https://issues.apache.org/jira/browse/MATH-1490
>             Project: Commons Math
>          Issue Type: Bug
>    Affects Versions: 3.4, 3.4.1, 3.5, 3.6, 3.6.1
>         Environment: System: Linux testinglab 4.4.0-131-generic #157~14.04.1-Ubuntu
> Java version "1.8.0_191"
> Java(TM) SE Runtime Environment (build 1.8.0_191-b12)
> Java HotSpot(TM) 64-Bit Server VM (build 25.191-b12, mixed mode)
>  
>  
>            Reporter: xia0c
>            Assignee: Rob Tompkins
>            Priority: Major
>              Labels: performance
>         Attachments: BugDemo.java
>
>
> The percentile method works well on the older versions, e.g., the version before 3.4. However, when I update commons-math to the newer version, there produces a computational accuracy issue. There is a backward compatibility bug behind it.



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