Is it possible to run R and Python code in the same Jupyter notebook. What are all the alternatives available?
I would not recommend to use two languages in a single Notebook. Instead, you can orchestrate R and Python code in project level by connecting them on input\output file base. Data science tools like DVC can help you in order to do that.
You might find some code examples in this blog post: Best practices of orchestrating Python and R code in ML projects