How to Install R and RStudio on Mac (Full Guide) | Complete R Setup on macOS

Are you trying to set up R for data science or statistics? In this video, I show you the correct order to install R and RStudio on a Mac in 2025.

Many beginners make the mistake of installing RStudio first, but it won't work without the "Base R" language installed! I also explain the crucial difference between the Apple Silicon (arm64) version for M1/M2/M3/M4 Macs and the Intel (x86) version for older Macs.

In this video, I cover:

The Difference: What is R (the engine) vs. RStudio (the car/dashboard)?

Step 1 (Base R): How to download the correct version from CRAN (Apple Silicon vs. Intel).

Step 2 (RStudio): Downloading the IDE from Posit.

Verification: Writing your first line of code to make sure everything is connected.

XQuartz: Do you still need it in 2025? (Brief explanation).

Downloads used in this video:

R (CRAN): [Insert Link to cloud.r-project.org]

RStudio Desktop: [Insert Link to posit.co/download/rstudio-desktop]

Steps to Install:

Check your Chip (Apple Icon About This Mac).

Go to the CRAN website.

Download the .pkg file (Choose arm64 for M-chips, x86_64 for Intel).

Install R first!

Go to the Posit website and download RStudio Desktop.

Drag RStudio into your Applications folder.

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