[R] About .RData

[Duncan Murdoch]

On 15/08/2010 10:24 AM, Stephen Liu wrote:
> ----- Original Message ----
> 
> From: Michael Bedward <michael.bedward at gmail.com>
> To: Stephen Liu <satimis at yahoo.com>
> Cc: r-help at r-project.org
> Sent: Sun, August 15, 2010 3:43:55 PM
> Subject: Re: [R] About .RData
> 
>>> Furthermore can I run following command on R?
>>> rm /home/userA/.RData
> 
>> .RData contains all of the objects in a workspace (your data,
>> functions etc.).  If you start R in a directory that contains a .RData
>> file it will be loaded automatically.
> 
>> If you delete the file you are deleting your data.
> 
>> Does that answer your question ?
> 
> 
> Hi Michael, 
> 
> Thanks for your advice
> 
> Windows 7
> Ubuntu 10.04
> (both 64 bits)
> 
> I have Windows R and Linux R running on VM (guest) of Oracle VirtualBox. 
> 
> Before I tested ANOVA on Linux R.  On existing R - q(), I mistakenly typed y 
> resulting in the file .RData created (I suppose).  Thereafter on starting R the 
> line  "[Previously saved workspace restored]" is displayed.
> 
> Running;
>> list.files(getwd(),full.names=TRUE,all.files=TRUE)
>  [1] "/home/satimisub04dk01/."                        
>  [2] "/home/satimisub04dk01/.."                       
>  [3] "/home/satimisub04dk01/.adobe"                   
> ....
> ....            
> [41] "/home/satimisub04dk01/R"                        
> [42] "/home/satimisub04dk01/.RData"                   
> ......        
> [54] "/home/satimisub04dk01/.xsession-errors.old"
> - end -
> 
> 
> On Windows R
> Starting R doesn't have the abovementioned line displayed.
> 
>> list.files(getwd(),full.names=TRUE,all.files=TRUE)
>  [1] "C:/Users/Administrator/Documents/."                              
>  [2] "C:/Users/Administrator/Documents/.."                             
>  [3] "C:/Users/Administrator/Documents/AOD_V3010287_XpVistaWin7.zip"   
>  [4] "C:/Users/Administrator/Documents/ASUSUpdt_V71702_XPVistaWin7.zip"
>  [5] "C:/Users/Administrator/Documents/Default.rdp"                    
>  [6] "C:/Users/Administrator/Documents/desktop.ini"                    
>  [7] "C:/Users/Administrator/Documents/EPU_V10022_XPVistaWin7.zip"     
>  [8] "C:/Users/Administrator/Documents/ExpressGate_v14910_Patch.rar"   
>  [9] "C:/Users/Administrator/Documents/M4A78T-E-QVL.zip"               
> [10] "C:/Users/Administrator/Documents/MB_WIN7_ATK.ZIP"                
> [11] "C:/Users/Administrator/Documents/My Music"                       
> [12] "C:/Users/Administrator/Documents/My Pictures"                    
> [13] "C:/Users/Administrator/Documents/My SAS Files(32)"               
> [14] "C:/Users/Administrator/Documents/My Videos"   
> 
> 
> Now my questions are;
> 
> 1) After deleting .RData on Linux R whether the abovementioned line will not 
> popup again?
> 
> 2) Why on Windows R the path of the folders/directories shows the Administrator;
> [1] "C:/Users/Administrator/Documents/."
> ......
> ???
> 
> Not the user?  I login as user.
> 
> A further thought, I recall that I login as Administrator to install R.  Does it 
> matter?.  How to change the path back to user?

You probably set the startup directory in the shortcut when you did the 
install.  (I believe that's the default behaviour.)  So you need to edit 
the shortcut to a different directory, possibly with a separate shortcut 
for each user.  The editing is done through Windows, by right-clicking 
on the shortcut.

Duncan Murdoch

> 
> TIA
> 
> 
> B.R.
> Stephen L
> 
> 
> 
> 
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