Administrators can install several versions of R and specify a global default version as well as per-user or per-group default versions. Users can specify that individual R projects remember their last version of R and always use that version until explicitly migrated to a new version. Flexible control over R versions makes it much easier to provide upgraded versions of R for users or individual projects that require them; while at the same time not disrupting work that requires continued use of older versions.
We recommend installing multiple versions of R because an environment with multiple versions of R helps provide a stable, reproducible environment for your R developers. For example, any of the following installed versions of R will be automatically detected by RStudio Server:. If you have versions of R located at other places in the file system, the RStudio Server can still utilize them.
When multiple versions of R are installed you will need to specify which version is the default one for new R sessions. This can be done automatically via the system PATH. However, several other mechanisms are provided when more flexibility is required. RStudio will therefore by default bind to the same version that is run when R is executed from a terminal.
If you want to override which version of R is used, then you can use the rsession-which-r setting. For example:. You can use the User and Group Profiles feature to specify distinct default versions of R for various users and groups. For example, the following profile configuration uses R 3. Users can also configure their own default version of R. The R studio team constantly working on the development of new versions. So the latest and stable version release is 1.
R Studio has two edition one is for Desktop and second is for the server. So the R Studio Desktop that installed on the computer system work locally. R Studio Server is accessed through a web browser and it is running on the remote server.
The R Studio has two version one is the free and open source and second is commercial, pro version. The Pro version is paid version with a lot of new features that are not available in the free version. Some of the main features that are in Pro version are; Project sharing, Multiple R versions, multiple R sessions, Load balancing, Administrative dashboard, Enhance security, Auditing and monitoring, Advance R session management and some more.
RStudio uses the QT framework for a graphical user interface. It has multiple packages that you can include and boost the functionality of the IDE. It has the code console where the code is highlighted and can be saved for use for other purposes.
The command console where you can run the commands easily and get the result of that command in the view with the graphical user interface. The workplace where the files are shown easily. It also has the help building that helps the functionality of the functions. This also has the auto code completion or the code completion help. R is a programming language that is specifically developed for the graphics, charts, and statistics. R is a free and open source that can easily download.
Either you can download the R language and work in the console of R language or you have a better option that is RStudio.
Just download and work in it. Getting Started with RStudio Server. RStudio Workbench Admin Guide. Download Server. Purchase Contact Sales Learn More. Connect and share knowledge within a single location that is structured and easy to search. I'm using a package ggmap that doesn't work on R 3.
Once the version is installed, I found how to force Rstudio to use it through the options panel. The issue is I am not able to install a previous version. I've downloaded the directory didn't do anything with it besides drag-and-drop into my R directory , but when I try to force Rstudio to use it, I get the following message: "This directory does not seem to contain a valid R installation". The parent directoy is the same that has the R 3. Thanks for any help!
In my experience, sometimes I also think it's due to a version incompatibility when it isn't. For example, I might get a message similar to this:. In this case, I added all of them just in case, which reassures that if the package exists and is available for my version, it will be installed You may want to reset it again to a single repository, as it may slow the installation of other packages.
Edit: If you actually get the Error message I mentioned, you might be interested in looking at this answer if setRepositories does not fix your issue.
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