I have a numpy array containing text data created by a groupby of pandas dataframe and further data preprocessing. Now I want to fit my data into a model, but I get the following error message:
ufunc 'add' did not contain a loop with signature matching types (dtype('<U13309'), dtype('<U13309')) -> dtype('<U13309')
I looked further into my array data and saw, that the array also was of dtype dtype('<U13309').
I have never seen that before, I can only guess its some kind of binary data format, which shows me strings, but that are not well processable by python.
So two questions: How can I convert my dtype('<U13309') array to a string array and what is this dtype?
Thank you!