Tag: emacs speaks statistics

I wanted a custom prompt for R with ESS. I wanted a double struck R. I probably did it wrong. It never worked. Actually it worked most of the time, and that is worse than never working. Kind people helped me. I still got it wrong. I take full responsibility. It was better not to do it. If you want to try, here is where I left it.

.Rprofile

Make the ℝ prompt stand out (be sure to tell ESS how to handle this):

options(prompt="ℝ> ")

.emacs.el

Tell ESS how to handle my custom prompt:

(setq inferior-ess-primary-prompt "ℝ> ")

Handle the custom ℝ prompt in ess. Don’t use custom here.

(setq inferior-S-prompt "[]a-zA-Z0-9.[]*\\(?:[>+.] \\)*ℝ+> ")

• The R Book
• Coursera specialization
• http://rpubs.com/thoughtfulbloke/subset
• http://blog.revolutionanalytics.com/2014/03/emacs-ess-and-r-for-zombies.html
• http://adv-r.had.co.nz/
• rs.io: 100+ interesting data sets for statistics
• The Elements of Statistical Learning: Data Mining, Inference, and Prediction
• https://www.youtube.com/watch?v=FL9Q43zO1BQ via http://blog.printf.net/articles/2014/03/03/more-technical-talks/
• How to spot a probable liar

Emacs speaks statistics handle indentation for curly bracket blocks quite well. My preference was to have, after inserting matching opening and closing curly brackets, a newline with the cursor indented one block in. This post in particular describes the solution; it worked fine as of today.
Addendum: 2014-04-17
Here is the code snippet from the above link:

(sp-local-pair 'c++-mode "{" nil :post-handlers '((my-create-newline-and-enter-sexp "RET")))
(defun my-create-newline-and-enter-sexp (&rest _ignored)
  "Open a new brace or bracket expression, with relevant newlines and indent. "
  (newline)
  (indent-according-to-mode)
  (forward-line -1)
  (indent-according-to-mode))

Addendum: 2014-05-06
Here is a link to the documentation on using pre and post pair handlers.