More importantly, Unix tends to use as a line separator; Windows tends to use r as a line separator and Macs (up to OS 9) used to use r as the line separator. (Mac OS X is Unix-y, so uses instead; there may be some compatibility situations where r is used instead though.) For more information, see the Wikipedia newline article. The Mac version of R is more like the Linux version when run from the UNIX command line. RStudio and the R.app GUI's are both nice IDE's. RStudio and the R.app GUI's are both nice IDE's. A few packages are not available because of the need to link to programs that are only available on a particular OS.
R is a free software programming language and a software environment for statistical computing and graphics. The R language is widely used among statisticians and data miners for developing statistical software and data analysis.
What's the Difference?
Install R For Mac
R the application is installed on your computer and uses your personal computer resources to process R programming language. RStudio integrates with R as an IDE (Integrated Development Environment) to provide further functionality. RStudio combines a source code editor, build automation tools and a debugger.
We recommend you install both R and RStudio on your personal computer.
Installing R
To install R to your local computer follow these steps:
- Download the R installer
- For Windows at https://cran.r-project.org/bin/windows/base/
- For Mac at https://cran.r-project.org/bin/macosx/
- Install R by opening the installer and following the steps
- That's it! You can now run R from your local computer
R And R Studio For Mac
Installing RStudio
To install RStudio to your local computer follow these steps:
- Verify you have already installed R and that you can launch the R application
- Download the RStudio Desktop installer at https://rstudio.com/products/rstudio/download/
- Install RStudio Desktop by opening the installer and following the steps
- That's it! You can now run RStudio from your local computer
Please contact a Statistics CSR if you have any difficulty installing R or using RStudio
R is a computer language. It’s a tool for doing the computation and number-crunching that set the stage for statistical analysis and decision-making. RStudio is an open source integrated development environment (IDE) for creating and running R code. It’s available in versions for Windows, Mac, and Linux. Although you don’t need an IDE in order to work with R, RStudio makes life a lot easier.
Download R from the Comprehensive R Archive Network (CRAN). In your browser, type this address if you work in Windows:
cran.r-project.org/bin/windows/base/
Type this one if you work on the Mac:
cran.r-project.org/bin/macosx/
Click the link to download R. This puts the win.exe file in your Windows computer, or the .pkg file in your Mac. In either case, follow the usual installation procedures. When installation is complete, Windows users see an R icon on their desktop, Mac users see it in their Application folder.
Both URLs provides helpful links to FAQs. The Windows-related URL also links to “Installation and other instructions.”
Now for RStudio.
Click the link for the installer for your computer, and again follow the usual installation procedures.
After the RStudio installation is finished, click the RStudio icon to open the window shown.
If you already have an older version of RStudio and you go through this installation procedure, the install updates to the latest version (and you don’t have to uninstall the older version).
The large Console pane on the left runs R code. One way to run R code is to type it directly into the Console pane.
The other two panes provide helpful information as you work with R. The Environment and History pane is in the upper right. The Environment tab keeps track of the things you create (which R calls objects) as you work with R. The History tab tracks R code that you enter.
Get used to the word object. Everything in R is an object.
The Files, Plots, Packages, and Help tabs are in the pane in the lower right. The Files tab shows files you create. The Plots tab holds graphs you create from your data. The Packages tab shows add-ons (called packages) you downloaded as part of the R installation. Bear in mind that “downloaded” doesn’t mean “ready to use.” To use a package’s capabilities, one more step is necessary, and you’ll want to use packages.
This figure shows the Packages tab. The packages are in either the user library (which you can see in the figure) or the system library (which you have to scroll down to).
The Help tab, shown here, provides links to a wealth of information about R and RStudio.
To tap into the full power of RStudio as an IDE, click the larger of the two icons in the upper right corner of the Console pane. That changes the appearance of RStudio so that it looks like this:
The top of the Console pane relocates to the lower left. The new pane in the upper left is the Scripts pane. You type and edit code in the Scripts pane and press Ctrl+R (Command+Enter on the Mac), and then the code executes in the Console pane.
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Ctrl+Enter works just like Ctrl+R. You can also select Code → Run Selected Line(s).