Hi Johannes,

I set the R version using something like this in my init file:
(setq inferior-ess-r-program "C:/Program Files/R/R-4.3.1/bin/x64/Rterm.exe")

But I'm still using ESS 18.10.2 (in Vincent Goulet's Emacs
distribution) so that line might not be the right way to do it in the
version you're using.

Hope that helps.

Mark


> Date: Wed, 27 Sep 2023 06:30:24 +0000
> From: =?utf-8?B?SMO8c2luZywgSm9oYW5uZXM=?=
>          <[email protected]>
> To: Toby Hocking <[email protected]>
> Cc: "[email protected]" <[email protected]>
> Subject: Re: [ESS] Have M-x R point at the most recent version of R
> Message-ID: <[email protected]>
> Content-Type: text/plain; charset="utf-8"
>
> Thanks for the hint.
>
> The path variable is now 
> %USERPROFILE%\AppData\Local\Microsoft\WindowsApps;%USERPROFILE%\AppData\Local\Programs\MiKTeX\miktex\bin\x64;C:\Program
>  Files\R\R-4.3.1\bin;
>
> M-x R will still start R-4.2.2. After renaming C:\Programme\R\R-4.2.2, M-x R 
> will lead to Emacs displaying the message:
> C:/Programme/R/R-4.2.2/bin/R program not found
>
> Is there a way to proceed to notify ESS about the new version installed and 
> have it start by default?
>
>
>
> Johannes Hüsing
> Epidemiologie
>

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