[R] clear screen?

[Duncan Murdoch]

On 03/05/2009 6:50 PM, Charles Annis, P.E. 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?

Ctrl-L will do it.  If you want to put it in a function, I don't think so.

An item that has been on my wish list for a long time is to rewrite the 
menu system in the Windows gui so that all items can be invoked from R 
code.  It's been sitting there in the section entitled "I wish someone 
else would do this."  It would not be hard, but it would be a lot of 
tedious work.

Duncan Murdoch

> 
> 
> 
>> 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
>  
> 
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