Re: [External Email] Re: When the R window opens, sometimes it is side-by-side with my .Rnw file. I want them one above the other. It seems unpredictable

I have the following two lines in my .emacs file, and it's always side by side (I open an Rmd file, and it's one buffer, I either start R or simply send an R command using C-c C-n or related and now I have two buffers, with the Rmd on the left and the R buffer on the right as I personally prefer).

(setq split-height-threshold nil)
(setq split-width-threshold 0)

And if I swap to be 0 for the first one and nil for the second, it's always R on the bottom. 

Best,

Jim

-----Original Message-----
From: ESS-help <[email protected]> On Behalf Of Christopher W. Ryan via ESS-help
Sent: Thursday, June 02, 2022 5:06 PM
To: ESS-help <[email protected]>
Subject: Re: [ESS] [External Email] Re: When the R window opens, sometimes it is side-by-side with my .Rnw file. I want them one above the other. It seems unpredictable

Karlo, can I put that in my .emacs file? I'm not yet familiar with init.el.  In fact, I can't find such a file on my system. Would I need to create it?

Thanks.

--Chris

Karlo Guidoni Martins wrote:
> You can control both window size and position setting the 
> display-buffer-alist variable in your init.el file. The following 
> snippet should work:
> (setq display-buffer-alist
>       `(("*R"
>          (display-buffer-reuse-window display-buffer-at-bottom)
>          (slot . 1)
>          (window-height . 0.3)
>          (reusable-frames . 0)))
> 
> Also, have a look at:
> https://ess.r-project.org/Manual/ess.html#Controlling-buffer-display
> 
> 
> 
> 
> On Fri, May 27, 2022, 18:27 Christopher W. Ryan via ESS-help 
> <[email protected] <mailto:[email protected]>> wrote:
> 
>     I'm using Vince Goulet's modified version of emacs 26.2 (build 1,
>     x86_64-w64-mingw32)  of 2019-04-13 with ESS, on Windows 10. I use Sweave
>     and LaTeX, so I have my R code in .Rnw files. When I execute my first
>     line of R code, an R buffer opens of course. I prefer it to be below my
>     Rnw buffer. Sometimes it is. But other times the R buffer opens to the
>     side. It's unpredictable, which is disconcerting; I have not been able
>     to discern a pattern.  How can I ensure that every time emacs/ESS opens
>     an R buffer, the emacs window is split top-and-bottom, rather than
>     side-by-side.
> 
>     Thanks.
> 
>     --Chris Ryan
> 
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