如何在 R 中禁用“保存工作区映像?”提示符？

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If you are using Rgui, right-click on the icon you use to start R and click on "Properties", and add --no-save to the command that starts R.

(from http://tolstoy.newcastle.edu.au/R/help/05/03/1115.html)

If you are using a different editor than Rgui, you have to pass --no-save to the R command line when starting R

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最佳答案

You can pass the --no-save command line argument when you start R, or you can override the q function:

utils::assignInNamespace(
"q",
function(save = "no", status = 0, runLast = TRUE)
{
.Internal(quit(save, status, runLast))
},
"base"
)

Put the above code in your .Rprofile so it will be run on startup for every session.

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How about just avoiding the prompt by typing q('no') instead

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You can escape the "Save workspace image?" prompt with a Ctrl+D.

Thus, if you do Ctrl+D twice in interactive R, then you exit R without saving your workspace.

(Tested on Linux and OS X)

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Haven't found the easiest Linux solution yet :)

On ubuntu add the following line to your ~/.bashrc:

alias R='R --no-save'

Every time you start the R console with R, it will be passed the --no-save option.

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You can create an alias for the R command:

using bash: alias R='R --no-save'

using csh: alias R 'R --no-save'

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You could easily add a qq() function to the .Rprofile file

 qq <- function(save="no") { q(save=save)}

I thought that the save option was available with options, but apparently Joshua's answer is best.

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Get the best of both strategies given by users 1 and 2:

Default to not save by adding the following line to your ~/.bashrc:

alias R='R --no-save'

But give yourself an easy way to save on exit by adding this to ~/.Rprofile:

qs <- function() { q(save="yes") }

So now q() will quit without saving or prompting but qs() will save and quit (also without prompting)

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If you feel adventurous enough, you could also edit the startup section at the end of /usr/bin/R, i.e. add --no-save to the exec calls. However, if you need to save your workspace, remember to save.image().

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Overwrite default option for save argument of quit function

formals(quit)$save <- formals(q)$save <- "no"

put this line in .Rprofile

Edit: added q, so there is no prompt no matter which variant is used

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If, like me, typing out a whole pair of brackets seems like too much effort to exit the repl you can try this:

exit <- structure(list(), class = "exit_command")


print.exit_command <- function(...) {
q("no")  # exit without saving
}

This creates a new class, which causes R to exit when attempting to print said class. The upshot being that if you run exit in the R repl, the whole thing will exit (because it tries to print it).

NB: You can add it to ~/.Rprofile to load at the start of every session.

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If you're using R Studio IDE, you can do this by re-setting the global option.

Go to Tools --> Global Options --> R General (Basic)

Uncheck Restore .RData into your workspace at startup
Save workspace image to .RData on exit -- Select 'Never'

Click on 'Apply' and then 'Ok'

I've written a detailed post on this topic here

In this post, I've addressed 'should we or should we not' save workspace image? I've written detailed answer to the following questions in the comments (make sure you read them all):

How to set never save workspace image?
what does it really mean when it says ‘save workspace image’.
Why you should (almost always) not save workspace image?
When should I save workspace image?
If not saving the workspace image, what should I do? What are the best practices?

In some other posts, I've discussed that might be useful for R users are:

'What is reproducible work?' https://www.linkedin.com/feed/update/urn:li:activity:6789770117715640320

Why should you not use rm(list=ls())? R Best Practices https://www.linkedin.com/feed/update/urn:li:activity:6785805481131683840

Working directory https://www.linkedin.com/posts/drnishaarora_2-set-working-directory-r-studio-activity-6785423883408297984-NAoH