(programming, slang) Someone who uses the R programming language.

plural of useR

One who uses or makes use of something, a consumer/client or an express or implied licensee (free user) or a trespasser. / A person who uses drugs, especially illegal drugs.

plural of user

plural of user group

(graphical user interface) A control created by a developer, usually by combining other controls, often intended for use in a specific application.

plural of user control

plural of power user

plural of end user

(computing) A set of users grouped together on a system for administrative purposes. / (computing) A community of users of a particular machine, operating system, etc.