I'm trying to use the rpy2/jupyter docker image and the %%R cell magic doesn't work. Should be dead easy to reproduce:
docker pull rpy2/jupyter docker run --rm -p 8888:8888 rpy2/jupyter
open a notebook, run this code:
Which will produce the output:
ERROR: Cell magic %%R not found.
I was googling the error and I noticed that it is also present in the documentation for 2.7.x