User manual

Chapter 5: Sending code to the ESS process 35
[Command]ess-eval-buffer vis
C-c C-b Sends the current buffer to the ESS process.
[Command]ess-eval-buffer-and-go vis
C-c M-b Like ess-eval-buffer but additionally switches point to the ESS process.
All the above ess-eval-* commands are useful for evaluating small amounts of code
and observing the results in the process buffer for debugging purposes, or for generating
transcripts from source files. When editing S functions, it is generally preferable to use C-c
C-l to update the function’s value. In particular, ess-eval-buffer is now largely obsolete.
A useful way to work is to divide the frame into two windows; one containing the source
code and the other containing the process buffer. If you wish to make the process buffer
scroll automatically when the output reaches the bottom of the window, you will need to
set the variable comint-scroll-to-bottom-on-output to ’others or t.