Issue with steaming airlines.arff

[Bander Bander]

In MOA, When I Click Configure button, select option for ARFF streaming
and then select the airlines.arff
then Press Run button
it failed and I get this

Failure reason: Problems with option: stream
*** STACK TRACE ***java.lang.IllegalArgumentException: Problems with option: stream
at moa.options.ClassOption.setValueViaCLIString(ClassOption.java:69)
at moa.tasks.EvaluateInterleavedTestThenTrain.doMainTask(EvaluateInterleavedTestThenTrain.java:103)
at moa.tasks.MainTask.doTaskImpl(MainTask.java:50)
at moa.tasks.AbstractTask.doTask(AbstractTask.java:57)
at moa.tasks.TaskThread.run(TaskThread.java:76)
Caused by: java.lang.Exception: Problem with options to 'ArffFileStream'.

Valid options for ArffFileStream:
-f arffFile
ARFF file to load.
-c classIndex (default: -1)
Class index of data. 0 for none or -1 for last attribute in file.

at moa.options.ClassOption.cliStringToObject(ClassOption.java:156)
at moa.options.ClassOption.setValueViaCLIString(ClassOption.java:67)
... 4 more
Caused by: java.lang.IllegalArgumentException: Unknown option: -i
at moa.options.Options.setViaCLIString(Options.java:149)
at moa.options.ClassOption.cliStringToObject(ClassOption.java:154)
... 5 more


how to fix this

[Albert Bifet]

Which version of moa are you using? It seems that there is a problem with options to 'ArffFileStream'

Cheers, Albert

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[Bander Bander]

Thanks for your respond

I am using the latest version   moa-release-2014 .11

Thanks

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[Albert Bifet]

Thanks! What task are you running? And which parameters are you using?

Cheers, Albert

[band...@gmail.com]

😅 I don't know what happened but it's working just fine

Question: I doing a thesis  about evaluating decision trees  algorithms in massive data stream mining 

Can I feed MOA with real data set, if yes how?

Sent from my iPhone

[Albert Bifet]

Yes, you have two ways, convert your data to arff format, or implement your own data reader.

Cheers, Albert

On Sat, Apr 18, 2015 at 1:10 PM, <band...@gmail.com> wrote:

I don't know what happened but it's working just fine