Unfortunately Xcode doesn't contain a Fortran compiler, therefore you will have to install one. R and some contributed package require a FORTRAN compiler. Which installs Xcode command line tools which are sufficient to build R (however, if you want to also build the R.app GUI you do need the full Xcode installation). On modern macOS versions you can simply use Older versions are available in the 'more' section of the Developer pages (Apple developer account necessary). Xcode can be obtained from Apple AppStore and the Xcode developer page. With its solid functionality, multiple panes, and shared source code, there is no need to look at any alternatives when choosing an app development tool.In order to compile R for macOS, you will need the following tools:

You can run Xcode on OS X 10.8 Mountain Lion or iOS 7 and above. The changes will take effect across both platforms. For ease of use, source and project code can be shared by Mac and iPad, allowing you to convert existing iPad apps into Mac apps. If your users have slow networks or run in extreme heat, you can test those conditions out before releasing your app. Use the devices window to simulate other environments. You can view your design changes instantly in another window. For developers who prefer multiple editing panes, Xcode provides you with total control of your work area. The drag and drop function helps you to make changes to visual UI elements, quickly and easily. Interface builder allows you to switch between light and dark modes, or even view them side by side. Newly introduced dark mode is built into Xcode. This added plus can identify errors in syntax and logic, and often fix the code for you.

Updated functionality now lets you code, test and debug all inside one window. Easy to read and write, Swift UI will help keep your apps smaller and download faster by using less code. Xcode featuresSwift UI, which offers up its own syntax. MacOS or iOS developers need look no further than the Xcode developer tool to design great apps. Design great apps on either Mac, iPad, or iPhone using Xcode.

Download older version of xcode for mac