On 10/29/2006 1:12 AM, Jesse Albert Canchola wrote:
> I'm using R on Windows XP Professional SP2.
>
> I figured out the fix for my buffer overflow problem that did not allow me
> to use Rgui.exe for about two weeks. I would keep getting "console not
> found" and even when I uninstalled and re-installed got the same problem.
>
> Here's how the problem started. In Rgui.exe, I attempted to get more
> visible output in the buffer (I wanted to be able to scroll up the to the
> top and see the variable names, etc.), so I put the max of all 9's in the
>
> Rgui.exe
>
> pull-down menus
>
> Edit > Gui Preferences... > buffer bytes 9999999999999
>
> and
>
>> lines 9999999999999999999
>
> not realizing this would effectively break the Rgui.exe and no matter what
> you did to clean R out of your machine and re-install it, you would get
> the same thing (with both v2.3.1 and v2.4.0). After a couple of weeks of
> using Rterm.exe and meeting deadlines, I finally had time to wade through
> the vague references online regarding where the problem might be.
Thanks for the report. I'll take a look and see if there's a more
friendly way to handle this.
Generally starting with the --vanilla option is a good idea to help with
diagnosing startup problems. If they go away, you've got a problem in
one of your startup files, and ?Startup tells you how to trace through
the startup process.
Duncan Murdoch
>
> Here's the fix.
>
> Basically, you have to find the Rconsole file (no extension) outside of
> the R installation directories (the installation directories will have at
> least two copies but those will not be chosen first by the R environment.
> What this means is that even if you delete every trace of the
> installation, the Rconsole will linger unbenownst to you ready to strike
> when you re-install. I found the errant copy in my "My Documents" folder
> on my desktop. The way I did it was to put in the following (in its
> entirety) in the Rterm.exe window (found at the bottom of ?Rconsole help
> file within Rterm.exe):
>
> #### BEGIN R CODE ####
> ruser <- Sys.getenv("R_USER")
> cat("\n\nLocation for personal configuration files is\n R_USER = ",
> ruser, "\n\n", sep="")
> ## see if there are personal configuration files
> sapply(c("Rconsole", "Rdevga"), function(x)
> file.exists(file.path(ruser, x)))
>
> ## show the configuration files used
> showConfig <- function(file)
> {
> ruser <- Sys.getenv("R_USER")
> path <- file.path(ruser, file)
> if(!file.exists(path)) path <- file.path(R.home(), "etc", file)
> file.show(path, header=path)
> }
> showConfig("Rconsole")
> ##### END CODE ####
>
> This will bring up the Rconsole file wherever it exists. Simply open up
> the file (if not already open) in the free within-Windows Wordpad.exe
> (Start > Run > Open Wordpad.exe) and change the values back to some
> smaller number. For me I changed the problematic "bufbytes" and
> "buflines" below:
>
> ### BEGIN Rconsole Code Portion ###
> # memory limits for the console scrolling buffer, in bytes and lines
> bufbytes = 9999999999999
> buflines = 9999999999999999999
> ###
>
> to something small like
>
> ### BEGIN Rconsole Code Portion ###
> # memory limits for the console scrolling buffer, in bytes and lines
> bufbytes = 25000
> buflines = 50000
> ###
>
> And voila! my Rgui.exe worked like a charm. It was fun using the
> Rterm.exe while it lasted -- forces you to learn code you usually take for
> granted in the windows environment. ;O)
>
> Regards,
> Jesse A. Canchola
>
> Biostatistician III
> Bayer Healthcare, Diagnostics Division
> Berkeley, California USA
>
>
>
>
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