inferior-ess-clean-buffer has been there for at least 20 years.
Read about it with
C-h f inferior-ess-clean-buffer

Use it with
    M-x inferior-ess-clean-buffer


It does not come with a predefined key stroke.  You can easily add your own.


On Mon, Aug 19, 2013 at 12:53 PM, Igor Sosa Mayor <
joseleopoldo1792@gmail.com> wrote:

> Am Sun, Aug 18, 2013 at 10:07:55PM -0400, Richard M. Heiberger wrote:
> > perhaps you are looking for inferior-ess-clean-buffer
>
> thnaks for the hint. I can not find this function in my ESS version.
>
> --
> :: Igor Sosa Mayor     :: joseleopoldo1792@gmail.com ::
> :: GnuPG: 0x1C1E2890   :: http://www.gnupg.org/      ::
> :: jabberid: rogorido  ::                            ::
>

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