How to tell which attribute Weka's OneR classifier uses for provided dataset?

Question

I'm currently using Weka's OneR classifier and below is the generated output. Is there any way to tell which attribute the OneR classifier is using for the dataset I have loaded?

Answer 1

Yes, it's variable 0.670968. Which likely indicates that the file you loaded doesn't have the names you intended.

I've highlighted where OneR shows the variable it uses below (using the iris.arff file).