[R] [beginner] simple keyword to exit script ?
I have tried quit(), and return() but first exits from whole graphical interface and second is only for functions. What I need only to exit from current script and return to the console. -- View this message in context: http://r.789695.n4.nabble.com/beginner-simple-keyword-to-exit-script-tp3052417p3052417.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] [beginner] simple keyword to exit script ?
On Nov 21, 2010, at 9:52 AM, madr wrote: I have tried quit(), and return() but first exits from whole graphical interface and second is only for functions. What I need only to exit from current script and return to the console. ?stop -- David Winsemius, MD West Hartford, CT __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] [beginner] simple keyword to exit script ?
I try to use stop(), but i get: Error in eval.with.vis(expr, envir, enclos) : -- View this message in context: http://r.789695.n4.nabble.com/beginner-simple-keyword-to-exit-script-tp3052417p3052430.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] [beginner] simple keyword to exit script ?
stop() throws an error but the side effect is to pop out of whatever environment you may be in and return to the top-level. I thought that was what you wanted. If not, then please produce a better problem description with code as requested in the posting guide. On Nov 21, 2010, at 10:12 AM, madr wrote: I try to use stop(), but i get: Error in eval.with.vis(expr, envir, enclos) : -- View this message in context: http://r.789695.n4.nabble.com/ And learn to include context. -- David Winsemius, MD West Hartford, CT __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] [beginner] simple keyword to exit script ?
On Nov 21, 2010, at 10:43 AM, madr wrote: Is there any way of suppressing that error, like in other programming languages you can specifically invoke an error or simply exit, If you are in a function, then return() like after user input, exiting then is not always identical with error , there are cases when it is intended behavior. I thought R makes that distinction. Provide some code. (You did say you had a script.) The answer probably depends on context and you are not providing any. -- David Winsemius, MD West Hartford, CT __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] [beginner] simple keyword to exit script ?
Is there any way of suppressing that error, like in other programming languages you can specifically invoke an error or simply exit, like after user input, exiting then is not always identical with error , there are cases when it is intended behavior. I thought R makes that distinction. -- View this message in context: http://r.789695.n4.nabble.com/beginner-simple-keyword-to-exit-script-tp3052417p3052464.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] [beginner] simple keyword to exit script ?
On Sun, Nov 21, 2010 at 9:52 AM, madr madra...@interia.pl wrote:
I have tried quit(), and return() but first exits from whole graphical
interface and second is only for functions. What I need only to exit from
current script and return to the console.
1. use my.source() below instead of source() to source your file and
2. in your file exit by using parent.frame(3)$exit.source(returncode).
Note that parent.frame(3)exit.source(returncode) must be at the top
level of your script. If its buried within a function within the
script then you may have to increase 3 to some larger number to go
back the correct number of frames. See ?callCC for more info.
Here is an example:
# use this in place of source
my.source - function(file, ...) {
source. - function(exit.source) source(file, ...)
callCC(source.)
}
# generate a test script called mytestfile.R
cat(cat('A\n')
parent.frame(3)$exit.source(7) # exit script
cat('B\n')
, file = mytestfile.R)
# run the test script
# It never gets to cat('B\n')
# exitcode contains the exit code, 7 in this case
exitcode - my.source(mytestfile.R)
--
Statistics Software Consulting
GKX Group, GKX Associates Inc.
tel: 1-877-GKX-GROUP
email: ggrothendieck at gmail.com
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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.
Re: [R] [beginner] simple keyword to exit script ?
Better is probably to return() from a function, i.e. define a function
in your script and call that at the end of your function, e.g.
- - - -
main - function() {
# bla
# bla
if (something) {
return();
}
# otherwise
# bla
}
main();
- - - -
Otherwise, here is a hack:
stopQuietly - function(...) {
blankMsg - sprintf(\r%s\r, paste(rep( , getOption(width)-1L),
collapse= ));
stop(simpleError(blankMsg));
} # stopQuietly()
stopQuietly()
The Error: message will be replaced by blanks. It will still output
an empty line. May not work in all settings; depends on terminal etc.
You need to define stopQuietly() in your script.
My $.02
/Henrik
On Sun, Nov 21, 2010 at 7:56 AM, David Winsemius dwinsem...@comcast.net wrote:
On Nov 21, 2010, at 10:43 AM, madr wrote:
Is there any way of suppressing that error, like in other programming
languages you can specifically invoke an error or simply exit,
If you are in a function, then return()
like after
user input, exiting then is not always identical with error , there are
cases when it is intended behavior. I thought R makes that distinction.
Provide some code. (You did say you had a script.) The answer probably
depends on context and you are not providing any.
--
David Winsemius, MD
West Hartford, CT
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] [beginner] simple keyword to exit script ?
On Sun, Nov 21, 2010 at 10:56:14AM -0500, David Winsemius wrote: On Nov 21, 2010, at 10:43 AM, madr wrote: Is there any way of suppressing that error, like in other programming languages you can specifically invoke an error or simply exit, If you are in a function, then return() like after user input, exiting then is not always identical with error , there are cases when it is intended behavior. I thought R makes that distinction. Provide some code. (You did say you had a script.) The answer probably depends on context and you are not providing any. A script may reach a condition, when it should stop in different situations. It need not be called using source(). It may be a function called from an extension package. If there is a sequence of several embedded calls than return() cannot be used. For scripts, which i use myself, i use stop() with a parameter, which is a character string explaining the stopping condition. This string is then a part of the generated error message. For scripts, which are used also by other people, i try to avoid this and make sure that after reaching a stopping condition, all cycles and function calls are finished. PS. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] [beginner] simple keyword to exit script ?
-Original Message-
From: r-help-boun...@r-project.org
[mailto:r-help-boun...@r-project.org] On Behalf Of Henrik Bengtsson
Sent: Sunday, November 21, 2010 8:17 AM
To: David Winsemius
Cc: r-help; madr
Subject: Re: [R] [beginner] simple keyword to exit script ?
Better is probably to return() from a function, i.e. define a function
in your script and call that at the end of your function, e.g.
This list gets a lot of questions about how to
do things with 'scripts' that are easily done with
functions. The S language (implemented by R and S+)
is oriented around functions, not scripts. Functions
easily call other functions but scripts cannot easily
call other scripts. Scripts are handy for one-off
things, but if you want to use the code in them again
it is best to put it into functions (and, after not
too long, the functions into a package). If you don't
accept that fact you have no end of frustration
with the language. (I realize others may have
different opinions.)
Bill Dunlap
Spotfire, TIBCO Software
wdunlap tibco.com
- - - -
main - function() {
# bla
# bla
if (something) {
return();
}
# otherwise
# bla
}
main();
- - - -
Otherwise, here is a hack:
stopQuietly - function(...) {
blankMsg - sprintf(\r%s\r, paste(rep( , getOption(width)-1L),
collapse= ));
stop(simpleError(blankMsg));
} # stopQuietly()
stopQuietly()
The Error: message will be replaced by blanks. It will still output
an empty line. May not work in all settings; depends on terminal etc.
You need to define stopQuietly() in your script.
My $.02
/Henrik
On Sun, Nov 21, 2010 at 7:56 AM, David Winsemius
dwinsem...@comcast.net wrote:
On Nov 21, 2010, at 10:43 AM, madr wrote:
Is there any way of suppressing that error, like in other
programming
languages you can specifically invoke an error or simply exit,
If you are in a function, then return()
like after
user input, exiting then is not always identical with
error , there are
cases when it is intended behavior. I thought R makes that
distinction.
Provide some code. (You did say you had a script.) The
answer probably
depends on context and you are not providing any.
--
David Winsemius, MD
West Hartford, CT
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
