Install R to Jupyter

In Debian 10:

Install Prereqs

sudo apt install dirmngr apt-transport-https ca-certificates software-properties-common gnupg2

Install key

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-key 'E19F5F87128899B192B1A2C2AD5F960A256A04AF'

Update packages

sudo apt update
sudo apt install r-base

Test R

R --version

Start R

sudo su
R

Install JupyterLab Packages

install.packages(c('rzmq','repr','IRkernel','IRdisplay'),repos = c('http://irkernel.github.io/', getOption('repos')), type = 'source')
IRkernel::installspec(user = FALSE)

CRAN 40

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-key '95C0FAF38DB3CCAD0C080A7BDC78B2DDEABC47B7'
deb http://cloud.r-project.org/bin/linux/debian buster-cran40/