Downloads of v 3.8.5:


Last Update:

25 Aug 2021

Package Maintainer(s):

Software Author(s):

  • University of Waikato


weka data mining machine learning java


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3.8.5 | Updated: 25 Aug 2021



Downloads of v 3.8.5:



Software Author(s):

  • University of Waikato

  • 1
  • 2
  • 3
weka 3.8.5

  • 1
  • 2
  • 3

This Package Contains an Exempted Check

Not All Tests Have Passed

Validation Testing Passed

Verification Testing Exemption:

Requires Java to be installed.


Scan Testing Successful:

No detections found in any package files

Learn More

Deployment Method: Individual Install, Upgrade, & Uninstall

To install weka, run the following command from the command line or from PowerShell:


To upgrade weka, run the following command from the command line or from PowerShell:


To uninstall weka, run the following command from the command line or from PowerShell:


Deployment Method:

📝 NOTE: This applies to both open source and commercial editions of Chocolatey.

1. Enter Your Internal Repository Url

(this should look similar to

2. Setup Your Environment

1. Ensure you are set for organizational deployment

Please see the organizational deployment guide

2. Get the package into your environment

  • Open Source or Commercial:
    • Proxy Repository - Create a proxy nuget repository on Nexus, Artifactory Pro, or a proxy Chocolatey repository on ProGet. Point your upstream to Packages cache on first access automatically. Make sure your choco clients are using your proxy repository as a source and NOT the default community repository. See source command for more information.
    • You can also just download the package and push it to a repository Download

3. Copy Your Script

choco upgrade weka -y --source="'INTERNAL REPO URL'" [other options]

See options you can pass to upgrade.

See best practices for scripting.

Add this to a PowerShell script or use a Batch script with tools and in places where you are calling directly to Chocolatey. If you are integrating, keep in mind enhanced exit codes.

If you do use a PowerShell script, use the following to ensure bad exit codes are shown as failures:

choco upgrade weka -y --source="'INTERNAL REPO URL'" 

Write-Verbose "Exit code was $exitCode"
$validExitCodes = @(0, 1605, 1614, 1641, 3010)
if ($validExitCodes -contains $exitCode) {
  Exit 0

Exit $exitCode

- name: Install weka
    name: weka
    version: '3.8.5'
    state: present

See docs at

chocolatey_package 'weka' do
  action    :install
  source   'INTERNAL REPO URL'
  version  '3.8.5'

See docs at

cChocoPackageInstaller weka
    Name     = "weka"
    Version  = "3.8.5"
    Source   = "INTERNAL REPO URL"

Requires cChoco DSC Resource. See docs at

package { 'weka':
  ensure   => '3.8.5',
  provider => 'chocolatey',
  source   => 'INTERNAL REPO URL',

Requires Puppet Chocolatey Provider module. See docs at

4. If applicable - Chocolatey configuration/installation

See infrastructure management matrix for Chocolatey configuration elements and examples.

This package was approved by moderator TheCakeIsNaOH on 25 Aug 2021.


Weka: Machine Learning Software in Java. Please note a Java runtime environment is required such as Oracle JRE or OpenJDK (requires javaw in %path%). Because of the variety of Java runtimes available there is no singular dependency.

$ErrorActionPreference = 'Stop'; # stop on all errors
$toolsDir   = "$(Split-Path -parent $MyInvocation.MyCommand.Definition)"
$url        = '' 

$packageArgs = @{
  packageName   = $env:ChocolateyPackageName
  unzipLocation = $env:ProgramFiles
  url           = $url
  softwareName  = 'weka*' #part or all of the Display Name as you see it in Programs and Features. It should be enough to be unique
  checksum      = '8EEC27669CB6D23BCD844041189067281295D1616F45DABF09F816B093F9FB49'
  checksumType  = 'sha256' 


# Extracted path from zip includes folder hence: $env:ProgramFiles\weka-3-8-5

# Test Java exists on path (required), note javaw not java to not display a console window:
if ((Get-Command javaw -ErrorAction SilentlyContinue).Name -eq 'javaw.exe') {

Install-ChocolateyZipPackage @packageArgs

[string]$javapath = (Get-Command javaw).Path

	Install-ChocolateyShortcut `
	  -ShortcutFilePath "$env:ProgramData\Microsoft\Windows\Start Menu\Programs\Weka 3.8.5.lnk" `
	  -TargetPath "$javapath" `
	  -WorkingDirectory "$env:ProgramFiles\weka-3-8-5" `
	  -Arguments '-jar weka.jar' `
	  -IconLocation "$env:ProgramFiles\weka-3-8-5\weka.ico" `
	  -Description 'Weka Machine Learning in Java'

else {

	Write-Error 'No Java runtime found on path on this system. Please amend path or install a version of Java JDK/JRE' -ErrorAction Stop

$ErrorActionPreference = 'Stop';

Uninstall-ChocolateyZipPackage `
  -PackageName weka `
  -ZipFileName `

# Clean up Start Menu Shortcut:
Remove-Item -Path "$env:ProgramData\Microsoft\Windows\Start Menu\Programs\Weka 3.8.5.lnk" -Confirm:$false

Log in or click on link to see number of positives.

In cases where actual malware is found, the packages are subject to removal. Software sometimes has false positives. Moderators do not necessarily validate the safety of the underlying software, only that a package retrieves software from the official distribution point and/or validate embedded software against official distribution point (where distribution rights allow redistribution).

Chocolatey Pro provides runtime protection from possible malware.

Add to Builder Version Downloads Last Updated Status
Weka 3908 Tuesday, June 11, 2013 Unknown
Weka 420 Friday, June 7, 2013 Unknown

This package has no dependencies.

Discussion for the weka Package

Ground Rules:

  • This discussion is only about weka and the weka package. If you have feedback for Chocolatey, please contact the Google Group.
  • This discussion will carry over multiple versions. If you have a comment about a particular version, please note that in your comments.
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  • Tell us what you love about the package or weka, or tell us what needs improvement.
  • Share your experiences with the package, or extra configuration or gotchas that you've found.
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