How do I clear only a few specific objects from the workspace?

A useful way to remove a whole set of named-alike objects:

rm(list = ls()[grep("^tmp", ls())])

thereby removing all objects whose name begins with the string "tmp".

Edit: Following Gsee's comment, making use of the pattern argument:

rm(list = ls(pattern = "^tmp"))

Edit: Answering Rafael comment, one way to retain only a subset of objects is to name the data you want to retain with a specific pattern. For example if you wanted to remove all objects whose name do not start with paper you would issue the following command:

rm(list = grep("^paper", ls(), value = TRUE, invert = TRUE))

Following command will do

rm(list=ls(all=TRUE))

You'll find the answer by typing ?rm

rm(data_1, data_2, data_3)

1. In RStudio, ensure the Environment tab is in Grid (not List) mode.

2. Tick the object(s) you want to remove from the environment.

3. Click the broom icon.