Thanks for this assurance. Knowing that it had worked for you helped me find (someone else’s overloading error).
Apologies. I will try to present questions in a better format next time.
Still, your input helped here.
Thanks!
This error is probably worth noting, because it is from a Notebook from the standard translation of ISLR into Julia - Chapter 3. In the notebook there is a macro defined called ‘predict’ which overloads the standard ‘predict’ function. If the name of the macro is changed, there is no overloading, and everything works fine.