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

Question

I would like to remove some data from the workspace  I know the  Clear All  button will remove all data  However  I would like to remove just certain data   For example  I have these data frames in the data section   data data 1 data 2 data 3   I would like to remove data 1  data 2 and data 3  while keeping data   I tried data 1  lt - data 2  lt - data 3  lt - NULL  which does remove the data  I think   but still keeps it in the workspace area  so it is not fully what I would like to do

User · Answer

You can use the apropos function which is used to find the objects using partial name   rm list   apropos  data

User · Answer

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

User · Answer

Following command will do  rm list ls all TRUE

User · Answer

Use the following command  remove list c  data 1    data 2    data 3

User · Answer

To clear all data   click on Misc gt Remove all objects    Your good to go    To clear the console    click on edit gt Clear console    No need for any code

User · Answer

You ll find the answer by typing  rm  rm data 1  data 2  data 3

User · Answer

If you re using RStudio  please consider never using the rm list   ls    approach   Instead  you should build your workflow around frequently employing the Ctrl Shift F10 shortcut to restart your R session  This is the fastest way to both nuke the current set of user-defined variables AND to clear loaded packages  devices  etc  The reproducibility of your work will increase markedly by adopting this habit   See this excellent thread on Rstudio community for  h t  kierisi  for a more thorough discussion  the main gist is captured by what I ve stated already    I must admit my own first few years of R coding featured script after script starting with the rm  trick  -- I m writing this answer as advice to anyone else who may be starting out their R careers    of course there are legitimate uses for this -- much like attach -- but beginning users will be much better served  IMO  crossing that bridge at a later date

User · Answer

paste0  data   seq 1 3 1      makes multiple data frame names with sequential number rm list paste0  data   seq 1 3 1     above code removes data 1 data 3

User · Answer

If you just want to remove one of a group of variables  then you can create a list and keep just the variable you need   The rm function can be used to  remove all the variables apart from  data    Here is the script   0- gt data 1- gt data 1 2- gt data 2 3- gt data 3  check variables in workspace ls   rm list setdiff ls     data     check remaining variables in workspace after deletion ls     note  if you just use rm list  then R will attempt to remove the  list  variable   list setdiff ls     data   rm list  ls

User · Answer

In RStudio  ensure the Environment tab is in Grid  not List  mode  Tick the object s  you want to remove from the environment  Click the broom icon

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

Examples related to r