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WEKA Unable to define structure as arff

I am writing a script to do some classification using weka, and I get an error when I try to start the classifier. I converted the file from CSV using weka.core.converters.CSVLoader.

Then I removed some attributes from it using weka.filters.unsupervised.attribute.Remove -R 1,7,8

Now when I try to run the classifier on it using the command

java -classpath /home/jim/Downloads/weka-3-6-3/weka.jar weka.classifiers.trees.J48 -p 0 -split-percentage 66 -preserve-order -t arff_input/Config38-R.arff

I get an error

 java.io.IOException: Unable to determine structure as arff (Reason: java.io.IOException: premature end of file, read Token[EOF], line 1).

EDIT - I assume this is a mistake in my first line, so here it is.

 @relation 'Config38-weka.filters.unsupervised.attribute.Remove-R1,7,8'

Has anyone else encountered a similar problem? Or I made a mistake somewhere.

thanks

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2 answers

I changed the first line to

 @relation Config38

and now it works. I don’t know why this works, and I wasn’t above afriad

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If you delete the first line in the .arff file, it will also work.

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