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List:       wekalist
Subject:    Re: [Wekalist] Filter didn't make the test instance
From:       Mark Hall <mhall () pentaho ! com>
Date:       2011-03-30 7:37:31
Message-ID: 4D92DDBB.20506 () pentaho ! com
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On 28/03/11 10:52 AM, Vo Nhu Tuan wrote:
> Hi,
> 
> Can someone help me with this please?
> 
> I'm getting the Exception "Filter didn't make the test instance immediately \
> available!" when using FilteredClassifier to classify my test instances. The filter \
> I used is MultiFilter with 2 filters StringToWordVector and StringToNominal. I'm \
> using weka 3.7.3. 
> Do you know how can I fix this, or any workaround?

I'm guessing that StringToNominal is the problem. If your test instances 
contains string values that were not seen in the training data - the set 
of legal nominal values for the String attributes being converted are 
determined from the training data.

Cheers,
Mark.

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