We want to use text data for NLP. I am having difficulty in running StringtoWordVector on my data. I believe this is because my text field is being imported as 'Nominal' instead of 'String'.

I converted the CSV into ARFF through Weka ARFF viewer in the hope that I will be able to convert the attribute type of the text column into 'string'. But I do not get the option there.

I am not familiar with Java to create the ARFF file with right attribute types. Any suggestions on working around this problem?

Many thanks