The rm(list=ls()) command allows you to remove all variables and functions from the current environment in R. This can be useful if you have been working on a project with many variables and functions and you want to start the project with a blank slate.
- Start by opening the R scripting environment.
- If there are any objects that you want to keep, make sure to save them off in a separate local variable before clearing the environment. To do this, type the name of the object you want to save and then use the
<-operator to assign it to a variable.
- Next, type
rm(list=ls())into the R command window and press the enter (or return) key.
- This will remove all variables and functions from the current environment.
Frequently Asked Questions
rm(list=ls()) delete all the objects?
rm(list=ls()) removes all objects from the current environment.
Q: Can I use this command to delete specific objects?
rm(list=ls()) will delete all objects in the environment. To delete specific objects, use the
rm() function with the name of the object as the parameter.
Q: Is this command reversible?
A: No, once you execute the
rm(list = ls()) command, the objects are gone and cannot be retrieved. Make sure you save any objects you want to keep before clearing the environment.