Hello,  I hope someone can advise me on how to get R running on my Windows PC 
again.  I uninstalled R2.8.1, and also the previous version 2.8 that were on my 
hard drive.  I reinstalled 2.8.1, but when I started the program, the message 
below came up, and R shut down.
 
"Fatal error:  unable to restore saved data in .Rdata"
 
I uninstalled and reinstalled 2.8.1, but same results.  Then I uninstalled 
2.8.1 and downloaded the 2.9 beta version.  Still the same fatal error message.
 
Any advice on how I can rectify whatever I did to wreck R?
 
thanks,
Paul
 
 

________________________________

From: David Winsemius [mailto:dwinsem...@comcast.net]
Sent: Thu 4/9/2009 2:40 PM
To: Prew, Paul
Cc: r-help@r-project.org
Subject: Re: [R] Error in saveLog(currentLogFileName




On Apr 9, 2009, at 2:17 PM, Prew, Paul wrote:

> David,  thank you for your helpful reply.
>
> a) The sessionInfo goof is actually kind of enlightening.  I'm 
> assuming that the purpose of adding the "()" symbols is to tell R 
> that sessionInfo is a function to be invoked, and leaving "()" 
> empty  says to use default arguments?

Yes. Exactly.

>
>
> b)  In the R GUI, I end my session by using the menu File > Exit.  A 
> dialog appears, asking, "Save workspace image?", and I choose Yes.
>
> In fact, I just did it and got a message, never seen this one before
>
> "Console not found.  Error in structure(.External"dotTclObjv:,objv,  
> PACKAGE - "tcltk"), class = "tclObj"):[tcl]invalid command name ".
> 6.1".

I am not an expert in the Windows GUI, but as a former user of it, I 
would wonder if my installation of tcltk had gotten corrupted and 
would try to reinstall. Caveat: That advice could be worth what you 
paid for it.

>
> Closed that message, another similar message was behind it, but now 
> the command name was "17.1"
>
> c) yes, agreed --- John Fox has been helpful to me a couple of 
> times.  I like the R Commander (it automatically adds those pesky 
> details like () that elude me), but I can't go the CRAN to get 
> packages from it, so I end up back at the GUI to install a package.  
> John has told me that moving back and forth between the GUI and 
> Commander is not how Commander was intended to be used.  Perhaps 
> this practice has led to some of the present confusions.
>
> Let's say I save a script or history or similar file that I would 
> like to recall at a later time,
> If I save the file using RCommander, should I only open the file 
> using R Commander?  Ditto for R GUI?  Regardless of which platform 
> I'm saving the files with, they seem to have some of the same 
> extensions, ".R", ".r", ".Rdata", etc.

I doubt that would be necessary, assuming the scripts do not have 
function calls that depend on R Commander being around. Files with .r 
extensions are just text files by another name.

I could not find a saveLog function with R-search restricted to 
functions but did find it as an argument to RCmdr. IIRC, RCmdr uses 
Tck/Tl extensively.

--
David

>
>
> Thanks,
> Paul
>
> Paul Prew  |  Statistician
> 651-795-5942   |   fax 651-204-7504
> Ecolab Research Center  | Mail Stop ESC-F4412-A
> 655 Lone Oak Drive  |  Eagan, MN 55121-1560
>
> -----Original Message-----
> From: David Winsemius [mailto:dwinsem...@comcast.net]
> Sent: Thursday, April 09, 2009 12:17 PM
> To: Prew, Paul
> Cc: r-help@r-project.org
> Subject: Re: [R] Error in saveLog(currentLogFileName
>
> This is just two suggestions and a guess.
>
> a) When you desire the information from sessionInfo ,you need to 
> type :
> sessionInfo()   # not sessionInfo
>
> ... results come from function calls and all you got was the
> sessionInfo code produced by the implicit print function to which you
> gave the argument sessionInfo.
>
> b) Tell us exactly the methods you used to save "my script", "my
> workspace", "etc"?
>
> c) As a guess, you had the Zelig package loaded under R-Commander
> yesterday but not today. The right person to ask this question of
> might be one of those package maintainers. (John Fox is very good
> about supporting R-Commander.)
>
>
>

David Winsemius, MD
Heritage Laboratories
West Hartford, CT




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