[R] clear screen?

[Daniel Viar]

I'm not sure how to put it in a function (or if this helps), but
Ctrl+L will clear the R Console in Windows.

Cheers,
Dan Viar


On Sun, May 3, 2009 at 6:58 PM, Charles Annis, P.E.
<Charles.Annis at statisticalengineering.com> wrote:
> Thank you Gabor.  I'm sorry I forgot whom to acknowledge as the author.
>
> My (limited) understanding is that rcom with rscproxy essentially give the R
> session the ability to look like a server, and that this scares some who are
> concerned with security issues.  I don't want any more capability than
> necessary and thus wanted something less potent to clear the console.
>
> Thanks for the insight.
>
> Charles Annis, P.E.
>
> Charles.Annis at StatisticalEngineering.com
> phone: 561-352-9699
> eFax:  614-455-3265
> http://www.StatisticalEngineering.com
>
>
> -----Original Message-----
> From: Gabor Grothendieck [mailto:ggrothendieck at gmail.com]
> Sent: Sunday, May 03, 2009 7:31 PM
> To: Charles.Annis at statisticalengineering.com
> Cc: r-help at r-project.org
> Subject: Re: [R] clear screen?
>
> You got it from my post here:
> http://tolstoy.newcastle.edu.au/R/help/06/02/21556.html
>
> Don't know why rcom's dependencies are a consideration
> but RDCOMClient can also handle this:
>
> cls <- function () {
>        require(RDCOMClient)
>        wsh <- COMCreate("Wscript.Shell")
>        wsh$SendKeys("\f")
>        invisible(wsh)
> }
> cls()
>
>
>
> On Sun, May 3, 2009 at 6:50 PM, Charles Annis, P.E.
> <Charles.Annis at statisticalengineering.com> wrote:
>> I’ve been using this routine for several years.  I’m sorry, I don’t
> remember
>> where I got it.  It works as it should, viz. it blanks the R console.  But
>> it requires package rcom and now that requires rscproxy.
>>
>> cls <-
>> function ()
>> {
>>    require(rcom)
>>    wsh <- comCreateObject("Wscript.Shell")
>>    comInvoke(wsh, "SendKeys", "\f")
>>    invisible(wsh)
>> }
>>
>>> cls()
>> Loading required package: rcom
>> Loading required package: rscproxy
>>
>> This seems like overkill to me just to blank the R console, especially
> since
>> I am trying to diminish the number of necessary packages to support my
>> home-brew package.
>>
>> So, is there an easier way to blank the R console in Windows?
>>
>>
>>
>>> sessionInfo()
>> R version 2.8.1 (2008-12-22)
>> i386-pc-mingw32
>>
>> locale:
>> LC_COLLATE=English_United States.1252;LC_CTYPE=English_United
>> States.1252;LC_MONETARY=English_United
>> States.1252;LC_NUMERIC=C;LC_TIME=English_United States.1252
>>
>> attached base packages:
>> [1] splines   tcltk     stats     graphics  grDevices utils     datasets
>> methods   base
>>
>> other attached packages:
>> [1] rcom_2.1-1         rscproxy_1.2-0     survival_2.35-3
>> RColorBrewer_1.0-2   RODBC_1.2-5       myhomebrew
>>
>> loaded via a namespace (and not attached):
>> [1] tools_2.8.1
>>>
>>
>>
>>
>> Charles Annis, P.E.
>>
>> Charles.Annis at StatisticalEngineering.com
>> phone: 561-352-9699
>> eFax:  614-455-3265
>> http://www.StatisticalEngineering.com
>>
>>
>> ______________________________________________
>> R-help at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>