In Emacs Speaks Statistics for R , how can I turn off the automatic replacement of _ with <- ?
Emacs Speaks Statistics
R
_
<-
To stop this smart behavior, add (ess-toggle-underscore nil) to your .emacs after the ess-site been loaded.
(ess-toggle-underscore nil)
ess-site
What rcs said. But pressing _ will turn "<-" into "_" again when you need it. So, when you need an underscore, just double-click it.