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I would like to use the WEKA library in a Java program but I can't seem to find the methods I installed using WEKA's package manager.

Does anyone know where the installed methods are stored?

For clarification, I installed WEKA, installed the extra package using WEKA and can use it with the WEKA GUI. But I can't find the installed package in the .lib file.

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  • $\begingroup$ Fyi you only need to locate the file weka.jar which contains all the weka libraries $\endgroup$
    – Erwan
    Commented Dec 9, 2019 at 15:51
  • $\begingroup$ Thanks for the comment Erwan, not all packages are in the weka.jar. When you install a package using their package manager, they're stored in the packages folder, which I didn't know existed until now. $\endgroup$
    – abdnChap
    Commented Dec 9, 2019 at 16:03
  • $\begingroup$ Oh ok sorry I didn't know that, thanks! $\endgroup$
    – Erwan
    Commented Dec 9, 2019 at 16:06
  • $\begingroup$ That's why I posted the question, I couldn't find the method I wanted in the jar and didn't know packages were stored elsewhere. Hopefully others will see my answer and won't spend as much time looking as I did haha $\endgroup$
    – abdnChap
    Commented Dec 9, 2019 at 16:08

2 Answers 2

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I don't know how WEKA stores the extra packages on other installations, but for my Windows 10 with WEKA 3.8 it was here:

WEKA stores the extra packages in a direcory called packages. This package was in my user directory and under the wekafiles folder.

Example: "C:\Users\myUser\wekafiles\packages....."

Hope this helps someone else.

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I found the regular installed Weka (x64) files at

C:\Program Files\Weka-x-y-z

where x-y-z is the version number. If you want to find a specific package, open the weka-src.jar file using Winrar or Winzip. Then you will be able to find all the regular packages inside the archive following the package structure.

For the packages you install using the package manager they are located at

%userprofile%\wekafiles\packages
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