[R] command line fails

Michael Ashton
2018-02-02T14:52:11Z

Fascinating. The script runs fine in 3.2.5, but won't run in 3.4.3 even with
ALL lines commented out.

I have no idea what that means. I can't imagine I found a 3.4.3 bug no one
knows about.

Michael Ashton, CFA
Managing Principal

Enduring Investments LLC
W: 973.457.4602
C: 551.655.8006


-----Original Message-----
From: Duncan Murdoch [mailto:murdoch.duncan at gmail.com]
Sent: Friday, February 02, 2018 9:03 AM
To: Michael Ashton; r-help at r-project.org
Subject: Re: [R] command line fails

On 02/02/2018 8:20 AM, Michael Ashton wrote:
> I don't think it's the path or the slashes. I run other files in
this same manner, with the same path to the script itself, and they go off
without a hitch. Although this is the first time I am using 3.4.3, and the only
script I am using that version of R for at the moment.
>
> Having said that, I did TRY reversing the slashes and got the same
> result. :-)
>

I'd try to determine if anything works with 3.4.3.  If nothing does, maybe
you need to back out to the older version.  If some scripts work and some
don't, then it shouldn't take long to find the offending line by
bisection:  comment out the last half of the script, if it works, that's
where the problem is, so comment only the last quarter, etc.

Duncan Murdoch


> Michael Ashton, CFA
> Managing Principal
>
> Enduring Investments LLC
> W: 973.457.4602
> C: 551.655.8006
>
>
> -----Original Message-----
> From: Duncan Murdoch [mailto:murdoch.duncan at gmail.com]
> Sent: Friday, February 02, 2018 8:16 AM
> To: Michael Ashton; r-help at r-project.org
> Subject: Re: [R] command line fails
>
> On 02/02/2018 7:52 AM, Michael Ashton wrote:
>> Hi - Think this is quick help. Not sure how to trap what is causing my
simple script to run fine in R, but fail immediately when called from rscript. I
can put all sorts of traps in the script itself, but when called from the
command line the r window simply flashes and closes.
>>
>> There's probably a way to find out why rscript is failing, but I
don't know it and can't seem to find it online. To be clear, I'm not
really trying to save the OUTPUT of the file...it never even executes as far as
I can tell. I'm calling it with C:\Program Files\R\R-3.4.3\bin\Rscript.exe
"P:\Investments\Trading Tools\RV Tools\myfile.r" And again, it
executes perfectly if I open the GUI first and then run it within R.
>>
>
> I'd try using forward slashes in the path, i.e.
"P:/Investments/Trading Tools/RV Tools/myfile.r"  I don't remember
if R processes the path to the script or whether it's done entirely by the
shell, but they shouldn't hurt.
>
> Spaces in file paths sometimes cause trouble.  If you put the script in a
path with no spaces does that help?  If so, you can probably escape that space,
but I can't remember what the escape sequence is.  (Escapes in Windows can
be processed by the command shell or Rscript.exe or both, so it's hard to
get them right.)  Another alternative might be to change directory to that path
and then use a relative path for the R script.
>
> Duncan Murdoch
>