Stop Jenny committing arson


April 1, 2024

This image has been edited.


Make RStudio restart itself. Perpetually.

Passing the torch

Jenny Bryan once said:

If the first line of your R script is rm(list = ls()) I will come into your office and SET YOUR COMPUTER ON FIRE 🔥.

The objects in your R environment are wicked little imps whose only motivation is to deceive you. They must be destroyed. Frequently.

But rm() isn’t enough to start with a completely a clean slate. It doesn’t detach packages, for example. Reproducibility is at stake here, folks!

The only salvation is to completely restart R. All the time.

I don’t think you heard me. Come closer. I said all the time.

An extinguisher

I’ve been woke to this thought technology for a while. You’re right, it’s time I gave back to the community.

I can’t trust you to restart R voluntarily, so I must help you to help yourself.

So, I have for you a gift. A precious snippet of R code that came to me in a fever dream.

  function(...) {
    message("⏳ You have 30 seconds...")

Simply open your .Rprofile (a special file that’s executed at start up) with usethis::edit_r_profile()1, paste in the code2 and then restart R for it to take effect3.

What does it do? When RStudio starts up it waits for 30 seconds and restarts R4.

…Which prompts another restart after 30 more seconds.

…And another.


trapped in a loop help I’m

I know what you’re thinking: doesn’t this block the console? Kind of. You can still type stuff and it’ll be executed before the next restart. Only to disappear immediately.

Just like Jenny wanted! I think?

Rise from the ashes

How can you thank me for this? I am humble (extremely), but you’re welcome to support my Patreon.

Happy March 32nd, colleagues.


Session info
Last rendered: 2024-03-31 21:47:51 BST
R version 4.3.1 (2023-06-16)
Platform: aarch64-apple-darwin20 (64-bit)
Running under: macOS Ventura 13.2.1

Matrix products: default
BLAS:   /Library/Frameworks/R.framework/Versions/4.3-arm64/Resources/lib/libRblas.0.dylib 
LAPACK: /Library/Frameworks/R.framework/Versions/4.3-arm64/Resources/lib/libRlapack.dylib;  LAPACK version 3.11.0

[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

time zone: Europe/London
tzcode source: internal

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

loaded via a namespace (and not attached):
 [1] htmlwidgets_1.6.2 compiler_4.3.1    fastmap_1.1.1     cli_3.6.2        
 [5] tools_4.3.1       htmltools_0.5.8   rstudioapi_0.16.0 yaml_2.3.8       
 [9] rmarkdown_2.26    knitr_1.45        jsonlite_1.8.8    xfun_0.43        
[13] digest_0.6.35     rlang_1.1.3       evaluate_0.23    


  1. Don’t.↩︎

  2. Don’t.↩︎

  3. Fine, do it.↩︎

  4. If you’re feeling extra spicy, maybe randomise the wait period!↩︎

  5. Maybe you’ll have to force quit RStudio? Use Cmd+Option+Esc on a Macintosh or Ctrl+Alt+Delete on Michaelsoft Binbows. I don’t need to tell Linux users what to do because they claim to know what they’re doing.↩︎