I have two versions of R on my Macbook, R 4.4 and R 3.6. The fortran compiler from [https://mac.r-project.org/tools/] is installed. R 4.4 works fine and can use the gfortran to install several packages.

I have two versions of R on my Macbook, R 4.4 and R 3.6. The fortran compiler from [https://mac.r-project.org/tools/] is installed. R 4.4 works fine and can use the gfortran to install several packages.