title: How to change attribute type in WEKA?
body: <p>I am a new learner in WEKA. I use Car Evaluation dataset. First, I copied all attributes, instances and values correctly in Excel and save as csv file. I opened that csv file in WEKA. I can see all count of classes, attributes etc. However, I cannot see for doors and persons attributes. I am getting "Attribute is neither numeric nor nominal." </p>
  
  <p>These attributes get values such as "2","3" and "more". They take both numeric and nominal values. In WEKA their types are string. How can I change attribute types or which method should I apply to see their visualization and counts?</p>