[R] Windows: start script but keep being in R-shell after finish
m@ech|er @end|ng |rom @t@t@m@th@ethz@ch
Wed Sep 22 11:44:17 CEST 2021
>>>>> Duncan Murdoch
>>>>> on Tue, 21 Sep 2021 09:09:40 -0400 writes:
> On 21/09/2021 3:12 a.m., c.buhtz using posteo.jp wrote:
>> Hello together,
>> I was using R some years ago and I am sorry for asking such a dumb
>> question. I found some help instructions about commandline interface but
>> I still miss the piece of information I need. I assume it depends on my
>> non-nativ English that I am not able to ask the correct (worded)
>> question to the search engines.
>> I use R-for-windows on the shell. No GUI, IDE or anything else.
>> When I am in windows shell ("command prompt"?) I wan't to run an
>> R-script (filename *.R). But when the script is finished or interrupted
>> the R-prompt should do not close.
>> In python I would do
>> python3 -i -m myscript
> I don't think R supports this, but the following almost works:
> cat myscript.R - | Rterm --ess
Inside R, we use
where source() has several optional arguments in addition,
such as 'echo=TRUE'
Probably Duncan did not mention it here, because indeed, it's
not quite equivalent to running the above semi-"batch mode"...
> This copies your file followed by stdin into the stdin of R. The --ess
> option tells R to act as if input is interactive, despite what it sees.
> This comes kind of close, but there are a couple of problems.
> - If I type really fast, the characters appear in the wrong order in R.
> - At the end when I quit, it sits there for a while until I hit enter,
> then gives the error message "cat: write error: no more space on device".
> Perhaps these problems can be fixed.
> Another approach would be to set an environment variable specifying that
> myscript.R is a user profile file, set via environment variable
> This has the disadvantage of overriding a pre-existing user profile
> file, but if this is just for you, I guess you know if you have one.
> Duncan Murdoch
> R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
More information about the R-help