The workspace image includes all of the R objects that you have created in the current, and possibly other, R sessions. An R object is any vector, matrix, list, etc. that you have assigned a specific name. For instance, suppose you typed:
> x <- 1
Then x is now an object that is in the workspace image.
Listing objects from your workspace image
To view the objects in the workspace image, type:
> ls()
Removing objects from your workspace image
To remove an object, x, from the workspace image, type:
> rm(x)
To remove all objects from the workspace image, type:
> rm(list=ls())