Installing Moa in weka

[Dan]

Hi,

 

I am trying to install the Moa lib as part of weka GUI. I used the package manager to install the but when trying to use the meta->moa I am getting the following message "Could not create an example of weka.classifiers.meta.moa from the current classpath.

I manually included the moa.jar to the classpath.

 

Thanks,

 

Dan

 

[Albert Bifet]

Try

java -cp moa.jar -jar weka.jar

Is it working?

Cheers,

Albert

[Dan]

Sorry not working, I already included moa.jar to the classpath. I am using weka version 3.7.6. I also installed it on another station and got the same error. this is the error I am getting:

Selected <Use an artificial time index>

java.lang.IllegalArgumentException: Problems with option: classifier

        moa.options.ClassOption.setValueViaCLIString(ClassOption.java:67)

        moa.options.AbstractOption.resetToDefault(AbstractOption.java:98)

        moa.options.AbstractClassOption.<init>(AbstractClassOption.java:93)

        moa.options.ClassOption.<init>(ClassOption.java:46)

        weka.classifiers.meta.MOA.<init>(MOA.java:76)

        sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

        sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)

        sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source

)

        java.lang.reflect.Constructor.newInstance(Unknown Source)

        java.lang.Class.newInstance0(Unknown Source)

        java.lang.Class.newInstance(Unknown Source)

        weka.gui.GenericObjectEditor.classSelected(GenericObjectEditor.java:1682

)

        weka.gui.GenericObjectEditor$3.valueChanged(GenericObjectEditor.java:159

9)

        javax.swing.JTree.fireValueChanged(Unknown Source)

        javax.swing.JTree$TreeSelectionRedirector.valueChanged(Unknown Source)

        javax.swing.tree.DefaultTreeSelectionModel.fireValueChanged(Unknown Sour

ce)

        javax.swing.tree.DefaultTreeSelectionModel.notifyPathChange(Unknown Sour

ce)

        javax.swing.tree.DefaultTreeSelectionModel.setSelectionPaths(Unknown Sou

rce)

        javax.swing.tree.DefaultTreeSelectionModel.setSelectionPath(Unknown Sour

ce)

        javax.swing.JTree.setSelectionPath(Unknown Source)

        javax.swing.plaf.basic.BasicTreeUI.selectPathForEvent(Unknown Source)

        javax.swing.plaf.basic.BasicTreeUI$Handler.handleSelection(Unknown Sourc

e)

        javax.swing.plaf.basic.BasicTreeUI$Handler.mousePressed(Unknown Source)

        java.awt.Component.processMouseEvent(Unknown Source)

        javax.swing.JComponent.processMouseEvent(Unknown Source)

        java.awt.Component.processEvent(Unknown Source)

        java.awt.Container.processEvent(Unknown Source)

        java.awt.Component.dispatchEventImpl(Unknown Source)

        java.awt.Container.dispatchEventImpl(Unknown Source)

        java.awt.Component.dispatchEvent(Unknown Source)

        java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)

        java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)

        java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)

        java.awt.Container.dispatchEventImpl(Unknown Source)

        java.awt.Window.dispatchEventImpl(Unknown Source)

        java.awt.Component.dispatchEvent(Unknown Source)

        java.awt.EventQueue.dispatchEventImpl(Unknown Source)

        java.awt.EventQueue.access$000(Unknown Source)

        java.awt.EventQueue$1.run(Unknown Source)

        java.awt.EventQueue$1.run(Unknown Source)

        java.security.AccessController.doPrivileged(Native Method)

        java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Sou

rce)

        java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Sou

rce)

        java.awt.EventQueue$2.run(Unknown Source)

        java.awt.EventQueue$2.run(Unknown Source)

        java.security.AccessController.doPrivileged(Native Method)

        java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Sou

rce)

        java.awt.EventQueue.dispatchEvent(Unknown Source)

        java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)

        java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)

        java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)

        java.awt.EventDispatchThread.pumpEvents(Unknown Source)

        java.awt.EventDispatchThread.pumpEvents(Unknown Source)

        java.awt.EventDispatchThread.run(Unknown Source)

        at moa.options.ClassOption.setValueViaCLIString(ClassOption.java:67)

        at moa.options.AbstractOption.resetToDefault(AbstractOption.java:98)

        at moa.options.AbstractClassOption.<init>(AbstractClassOption.java:93)

        at moa.options.ClassOption.<init>(ClassOption.java:46)

        at weka.classifiers.meta.MOA.<init>(MOA.java:76)

        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

        at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)

        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Sou

rce)

        at java.lang.reflect.Constructor.newInstance(Unknown Source)

        at java.lang.Class.newInstance0(Unknown Source)

        at java.lang.Class.newInstance(Unknown Source)

        at weka.gui.GenericObjectEditor.classSelected(GenericObjectEditor.java:1

682)

        at weka.gui.GenericObjectEditor$3.valueChanged(GenericObjectEditor.java:

1599)

        at javax.swing.JTree.fireValueChanged(Unknown Source)

        at javax.swing.JTree$TreeSelectionRedirector.valueChanged(Unknown Source

)

        at javax.swing.tree.DefaultTreeSelectionModel.fireValueChanged(Unknown S

ource)

        at javax.swing.tree.DefaultTreeSelectionModel.notifyPathChange(Unknown S

ource)

        at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPaths(Unknown

Source)

        at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPath(Unknown S

ource)

        at javax.swing.JTree.setSelectionPath(Unknown Source)

        at javax.swing.plaf.basic.BasicTreeUI.selectPathForEvent(Unknown Source)

        at javax.swing.plaf.basic.BasicTreeUI$Handler.handleSelection(Unknown So

urce)

        at javax.swing.plaf.basic.BasicTreeUI$Handler.mousePressed(Unknown Sourc

e)

        at java.awt.Component.processMouseEvent(Unknown Source)

        at javax.swing.JComponent.processMouseEvent(Unknown Source)

        at java.awt.Component.processEvent(Unknown Source)

        at java.awt.Container.processEvent(Unknown Source)

        at java.awt.Component.dispatchEventImpl(Unknown Source)

        at java.awt.Container.dispatchEventImpl(Unknown Source)

        at java.awt.Component.dispatchEvent(Unknown Source)

        at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)

        at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)

        at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)

        at java.awt.Container.dispatchEventImpl(Unknown Source)

        at java.awt.Window.dispatchEventImpl(Unknown Source)

        at java.awt.Component.dispatchEvent(Unknown Source)

        at java.awt.EventQueue.dispatchEventImpl(Unknown Source)

        at java.awt.EventQueue.access$000(Unknown Source)

        at java.awt.EventQueue$1.run(Unknown Source)

        at java.awt.EventQueue$1.run(Unknown Source)

        at java.security.AccessController.doPrivileged(Native Method)

        at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown

Source)

        at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown

Source)

        at java.awt.EventQueue$2.run(Unknown Source)

        at java.awt.EventQueue$2.run(Unknown Source)

        at java.security.AccessController.doPrivileged(Native Method)

        at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown

Source)

        at java.awt.EventQueue.dispatchEvent(Unknown Source)

        at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)

        at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)

        at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)

        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)

        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)

        at java.awt.EventDispatchThread.run(Unknown Source)

Caused by: java.lang.Exception: Class not found: DecisionStump

        at moa.options.ClassOption.cliStringToObject(ClassOption.java:126)

        at moa.options.ClassOption.setValueViaCLIString(ClassOption.java:64)

        ... 53 more

[Albert Bifet]

> Sorry not working, I already included moa.jar to the classpath. I am using
> weka version 3.7.6. I also installed it on another station and got the same
> error. this is the error I am getting:

Yes, that was an issue solved last March. You can try the code in the
repository, or wait to the new release of MOA next week.

Cheers,

Albert