Train and test set are not compatible error in weka?

machine-learning weka arff
Suren Raju picture Suren Raju · Jul 16, 2013 · Viewed 15.9k times · Source

I'm trying to test my model with new dataset. I have done the same preprocessing step as i have done for building my model. I have compared two files but there is no issues. I have all the attributes(train vs test dataset) in same order, same attribute names and data types. But still i'm not able to resolve the issue. Both of the files train and test seems to be similar but the weka explorer is giving me error saying Train and test set are not compatible. How to resolve this error? Is there any way to make test.arff file format as train.arff? Please somebody help me.

Here is the screenshot for file comparision

Answer

Annie Kim picture Annie Kim · Jul 16, 2013

The same with the comment that I left after problem statement:

All the three attributes are nominal attributes followed by all the possible values quoted by '{}'. One of my guess is that the possible values are not the same. For example, for RESOURCE attribute there is no 199 in test file, while it is in training-file.

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