macOS R installation steps

This article is to provide steps to install R in macOS.

Steps to install R for macOS

1. Go to R official website to download the dng setup: https://cran.r-project.org/bin/macosx/
2. If your macOS version is 10.11 and higher download: R-3.5.1.pkg
3. If your macOS is 10.9 or 10.10 use the download package R-3.3.3.pkg
4. If you are using the latest M1 Silicon (ARM) based Mac use the package: R-4.1.0-arm64.pkg
5. After the setup is download follow the instructions to install R. You will be asked to agree the software license agreement to continue.

Installation Details of 4.1.0:

R 4.1.0
Version 4.1.0 (Camp Pontanezen)
for macOS 11 (Big Sur) and higher ARM64

This multi-package contains the following main components:
- R Framework 4.1.0
- R.app GUI 1.76
- Tcl/Tk 8.6.11 for X11 (optional, needed for the tcltk R package)
- Texinfo 6.7 (optional, needed to build documentation in R packages from sources)

Requirements:
- ARM64-based Mac (M1 or later)
- macOS 11 (Big Sur) or higher

Note: By default the installer upgrades previous Big Sur ARM build of R if present. If you want to keep the previous version, use
pkgutil --forget org.R-project.arm64.R.fw.pkg

The Cocoa GUI called R.app will be installed by default in your Applications folder,  
R framework will be installed in /Library/Frameworks and Tcl/Tk and 
Texinfo will be installed in /opt/R/arm64

When you type R in Spotlight Search you will see the R application, open it and you must see the macOS R Colonse.