In my node “Aprior(3.7)”, there is a column that is of type string (Twitter), containing phrases (texts), however in the “Preliminary Attribute Check”, it shows the error: weka.associations.Apriori: Cannot handle string attributes!
in order to make sure the type is properly recognized.
But I would suggest you think about what it is you want to do. I think just out of a collection of text this node will not be able to extract meaningful results.
If you are interested in Rule Mining here are some examples but they require certain data preparations:
It is also possible that you would want to think about what it is you want to achieve and what methods might be the right ones.
Some tasks might be more in the area of Topic Modeling and Detection: