[R] clear console

[Gabor Grothendieck]

On Sat, Mar 31, 2012 at 8:09 AM, mrzung <mrzung46 at gmail.com> wrote:
> hi,
>
> I use  R - 2.15(32bit), and want to make a code to clear a console.
>
> Actually, I used to run following code to do that but after update the
> version of R from 2.14 to 2.15, it doesn't work.
>
> cls <- function (t) {
>        require(RDCOMClient)
>        wsh <- COMCreate("Wscript.Shell")
>        wsh$SendKeys("\f")
>        invisible(wsh)
> }
> cls()
>
> or
>
> cls <- function() {
> require(rcom)
> wsh <-comCreateObject("Wscript.Shell")
> comInvoke(wsh, "SendKeys", "\f")
> invisible(wsh)
> }
>
> cls()
>

That is code that I originally posted on r-help 6 years ago--
https://stat.ethz.ch/pipermail/r-help/2006-February/088507.html

The rcom version of that code still seems to work for me and I suspect
the RDCOMClient one would work for me too except that RDCOMClient
seems not yet available for R 2.15.0 (after checking a variety of
repos using install.packages).

install.packages did install rcom and it worked although the first
time one runs it in the session it now gives an annoying popup message
which did not occur six years ago.

You might want to check what the differences are between your setup and mine:

> R.version.string
[1] "R version 2.15.0 Patched (2012-03-30 r58875)"
> win.version()
[1] "Windows Vista (build 6002) Service Pack 2"
> packageVersion("rcom")
[1] ‘2.2.3.1.1’
> packageVersion("rscproxy")
[1] ‘1.3.1’

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