Sentiment Analysis (Classification) of Documents: Error with Document Vector


I’m working on a sentiment analysis workflow and got an error after running the document vector. It says:

->“Column “Document class” has no nominal values set: execute predecessor or add Binner.”

I don’t know, how to solve that error? What do I have to do and how and where can I execute predecesspr or add Binner?

Thank you for replies

Hi @Steph,

I guess you need to transform the Document column into vector. Did you select the right column in the Document Vector node?