[ESS] help configuring auto-complete for ESS on Windows

[Alex Branham]

On Sun 18 Mar 2018 at 09:05, Vince West <dvincentwest using gmail.com> wrote:

> I've been racking my brain and googling for last 48 hours but have been
> unable to figure this out.
>
> RStudio has very nice auto-complete features baked in, but I can't seem to
> get it working with ESS.
>
> I am using emacs latest on Windows 10 x64, R3.4.3, installing ESS from
> MELPA and installing company-mode from MELPA
>
> For controlled experimentation my init.el file is pretty bare bones (see
> below).
>
> I open up a new R buffer and ess mode seems to initialize properly.  I type
> M-x company-mode to enable company mode, but I get no autocomplete of any
> kind.  Company-mode is working properly on elisp files.  Wondering if
> anybody has a working example of ESS autocomplete working on Windows and
> can tell me how to get it functioning properly.

You have to have an inferior R session open, if memory serves. Have you
tried starting one (with, e.g. C-c C-z)?