[R] communicate from Rterm

[Duncan Murdoch]

On 1/11/2008 10:14 AM, stephen bond wrote:
> I try with:
> 
> ret = Shell(exestr)
> 
> and it starts R, but the source file is not executed 

That's a VBA issue.  VBA isn't handling the input redirection "< m.in.R 
 > out.txt".  I don't know how to set that up:  you'll need to contact 
Microsoft tech support.

Duncan Murdoch

> 
> inside R
> 
>> a=commandArgs()
>> a
> [1] "Rterm"  "--restore" "--save"  "--args" "2005-02-03" #correct date 
> passed
> [6]  "<"  "m.in.R"  ">"  "out.txt"
>>
> 
> it restores the correct workspace, but then it fails to source the 
> script, which is located in the same dir as the workspace.
> 
> inside R 
> 
>> source("m.in.R") # does the job, so it is not a finding problem 
> 
> BTW is it possible to get the error message from R somehow???
> 
> 
> ----Original Message----
> From: murdoch at stats.uwo.ca
> Date: 01/11/2008 6:30 
> To: "stephen bond"<stenka1 at go.com>
> Cc: <r-help at r-project.org>
> Subj: Re: [R] communicate from Rterm
> 
> On 1/11/2008 9:18 AM, stephen bond wrote:
>> Please, help with announcing an error from Rterm:
>> 
>> I am calling R from an Excel VBA and noticed that if there is an 
> error 
>> nothing conspicuous happens. I would like just a popup window when 
> R 
>> cannot finish cleanly. The "ret " value returned from Shell is 
> useless 
>> in determining what happened.
> 
> This seems to be a VBA problem, not an R problem.  Rterm returns a 0 
> return value when it exits cleanly, and a non-zero value when there's 
> an 
> error.  It looks as though you're losing that by wrapping the Rterm 
> call 
> in a batch file.  Can't VBA make the call to Rterm directly?
> 
> Duncan Murdoch
> 
>> 
>> Thank you all.
>> 
>> *****************************
>> Public Sub Repo()
>> ds = InputBox("Type in reporting date as YYYY-MM-DD", "reporting 
>> date")
>> 
>> ''-----   weird way to pass the date argument as Windows won't
>> ''-----   execute the command line directly, so I create a .bat
>> 
>> exestr = "Rterm --restore --save --args " & ds & " < m.in.R > out.
> txt"
>> Set fs = CreateObject("Scripting.FileSystemObject")
>> Set a = fs.CreateTextFile("rpcd.bat", True)
>> a.writeline (exestr)
>> a.Close
>> 
>> ret = Shell("rpcd.bat")
>> MsgBox ("wait for about 5 seconds as the script runs 
> asynchronously")
>> 
>> End Sub
>> 
>> **************m.in.R************
>> ds=commandArgs(T)[1]
>> 
>> ans=f.repo(ds)
>> 
>> q("yes")
>> 
>> ______________________________________________
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>> PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
>> and provide commented, minimal, self-contained, reproducible code.
> 
> ______________________________________________
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.