Re: [R] repeat { readline() }
--- Henrik Bengtsson [EMAIL PROTECTED] a écrit :
Hi.
Using Rterm v2.2.1 on WinXP, is there a way to
interrupt a call like
repeat { readline() }
without killing the Command window? Ctrl+C is not
interrupting the loop:
To interupt the loop add and condition for a break
like this :
if () break
R : Copyright 2006, The R Foundation for Statistical
Computing
Version 2.2.1 Patched (2006-01-01 r36947)
snip/snip
repeat { readline() }
^C
^C
^C
^C
On Unix it works. The problem seems to get the
interrupt signal to
occur outside the readline() call so that repeat
is interrupted. Doing
repeat { readline(); Sys.sleep(3) }
and it is likely that can generate an interrupt
signal outside readline().
It seem like readline()/readLines(n=1) or an
underlying method catches
the interrupt signal quietly and just waits for a
symbol to come
through. Try readline() by itself and press Ctrl+C.
Maybe this is a
property of the Windows Command terminal, I don't
know, but is it a
wanted feature and are R core aware of it? Note
that, in Rgui it is
possible to interrupting such a loop by pressing
ESC.
Cheers
Henrik
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Re: [R] repeat { readline() }
Use tryCatch; try behaves the way it does with respect to interrupts
for historical compatibility.
luke
On Sun, 8 Jan 2006, hadley wickham wrote:
On a related note, does anyone know how to exit:
repeat { try( readline() ) }
The try block captures Ctrl-C.
Hadley
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Chair, Statistics and Actuarial Science
Ralph E. Wareham Professor of Mathematical Sciences
University of Iowa Phone: 319-335-3386
Department of Statistics andFax: 319-335-3017
Actuarial Science
241 Schaeffer Hall email: [EMAIL PROTECTED]
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Re: [R] repeat { readline() }
Ctrl-Break works: see the rw-FAQ and README.rterm. (You'll need a return
to see a new prompt.)
It is related to your reading directly from the console, so Ctrl-C is
getting sent to the wrong place, I believe. (There's a comment from Guido
somewhere in the sources about this, and this seems corroborated by the
fact that Ctrl-C will interrupt under Rterm --ess.)
On Sun, 8 Jan 2006, Henrik Bengtsson wrote:
Hi.
Using Rterm v2.2.1 on WinXP, is there a way to interrupt a call like
repeat { readline() }
without killing the Command window? Ctrl+C is not interrupting the loop:
R : Copyright 2006, The R Foundation for Statistical Computing
Version 2.2.1 Patched (2006-01-01 r36947)
snip/snip
repeat { readline() }
^C
^C
^C
^C
On Unix it works. The problem seems to get the interrupt signal to
occur outside the readline() call so that repeat is interrupted. Doing
repeat { readline(); Sys.sleep(3) }
and it is likely that can generate an interrupt signal outside readline().
It seem like readline()/readLines(n=1) or an underlying method catches
the interrupt signal quietly and just waits for a symbol to come
through. Try readline() by itself and press Ctrl+C. Maybe this is a
property of the Windows Command terminal, I don't know, but is it a
wanted feature and are R core aware of it? Note that, in Rgui it is
possible to interrupting such a loop by pressing ESC.
Cheers
Henrik
__
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--
Brian D. Ripley, [EMAIL PROTECTED]
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UKFax: +44 1865 272595
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Re: [R] repeat { readline() }
On a related note, does anyone know how to exit:
repeat { try( readline() ) }
The try block captures Ctrl-C.
Hadley
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Re: [R] repeat { readline() }
On Sun, 8 Jan 2006, Prof Brian Ripley wrote:
Ctrl-Break works: see the rw-FAQ and README.rterm. (You'll need a return
to see a new prompt.)
It is related to your reading directly from the console, so Ctrl-C is
getting sent to the wrong place, I believe. (There's a comment from Guido
somewhere in the sources about this, and this seems corroborated by the
fact that Ctrl-C will interrupt under Rterm --ess.)
Although the comment is there (in psignal.c), on closer examination the
cause is a change Guido made to getline.c, so Ctrl-C is treated as a
character during keyboard input. I doubt if that was intentional (0 is
not the default state) and I have changed it for R-devel.\
On Sun, 8 Jan 2006, Henrik Bengtsson wrote:
Hi.
Using Rterm v2.2.1 on WinXP, is there a way to interrupt a call like
repeat { readline() }
without killing the Command window? Ctrl+C is not interrupting the loop:
R : Copyright 2006, The R Foundation for Statistical Computing
Version 2.2.1 Patched (2006-01-01 r36947)
snip/snip
repeat { readline() }
^C
^C
^C
^C
On Unix it works. The problem seems to get the interrupt signal to
occur outside the readline() call so that repeat is interrupted. Doing
repeat { readline(); Sys.sleep(3) }
and it is likely that can generate an interrupt signal outside readline().
It seem like readline()/readLines(n=1) or an underlying method catches
the interrupt signal quietly and just waits for a symbol to come
through. Try readline() by itself and press Ctrl+C. Maybe this is a
property of the Windows Command terminal, I don't know, but is it a
wanted feature and are R core aware of it? Note that, in Rgui it is
possible to interrupting such a loop by pressing ESC.
Cheers
Henrik
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
--
Brian D. Ripley, [EMAIL PROTECTED]
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UKFax: +44 1865 272595
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
--
Brian D. Ripley, [EMAIL PROTECTED]
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UKFax: +44 1865 272595
__
R-help@stat.math.ethz.ch mailing list
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Re: [R] repeat { readline() }
Prof Brian Ripley wrote:
On Sun, 8 Jan 2006, Prof Brian Ripley wrote:
Ctrl-Break works: see the rw-FAQ and README.rterm. (You'll need a return
to see a new prompt.)
It is related to your reading directly from the console, so Ctrl-C is
getting sent to the wrong place, I believe. (There's a comment from
Guido
somewhere in the sources about this, and this seems corroborated by the
fact that Ctrl-C will interrupt under Rterm --ess.)
Although the comment is there (in psignal.c), on closer examination the
cause is a change Guido made to getline.c, so Ctrl-C is treated as a
character during keyboard input. I doubt if that was intentional (0 is
not the default state) and I have changed it for R-devel.\
Thank you very much this.
Henrik
On Sun, 8 Jan 2006, Henrik Bengtsson wrote:
Hi.
Using Rterm v2.2.1 on WinXP, is there a way to interrupt a call like
repeat { readline() }
without killing the Command window? Ctrl+C is not interrupting the
loop:
R : Copyright 2006, The R Foundation for Statistical Computing
Version 2.2.1 Patched (2006-01-01 r36947)
snip/snip
repeat { readline() }
^C
^C
^C
^C
On Unix it works. The problem seems to get the interrupt signal to
occur outside the readline() call so that repeat is interrupted.
Doing
repeat { readline(); Sys.sleep(3) }
and it is likely that can generate an interrupt signal outside
readline().
It seem like readline()/readLines(n=1) or an underlying method catches
the interrupt signal quietly and just waits for a symbol to come
through. Try readline() by itself and press Ctrl+C. Maybe this is a
property of the Windows Command terminal, I don't know, but is it a
wanted feature and are R core aware of it? Note that, in Rgui it is
possible to interrupting such a loop by pressing ESC.
Cheers
Henrik
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html
--
Brian D. Ripley, [EMAIL PROTECTED]
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UKFax: +44 1865 272595
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html
__
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[R] repeat { readline() }
Hi.
Using Rterm v2.2.1 on WinXP, is there a way to interrupt a call like
repeat { readline() }
without killing the Command window? Ctrl+C is not interrupting the loop:
R : Copyright 2006, The R Foundation for Statistical Computing
Version 2.2.1 Patched (2006-01-01 r36947)
snip/snip
repeat { readline() }
^C
^C
^C
^C
On Unix it works. The problem seems to get the interrupt signal to
occur outside the readline() call so that repeat is interrupted. Doing
repeat { readline(); Sys.sleep(3) }
and it is likely that can generate an interrupt signal outside readline().
It seem like readline()/readLines(n=1) or an underlying method catches
the interrupt signal quietly and just waits for a symbol to come
through. Try readline() by itself and press Ctrl+C. Maybe this is a
property of the Windows Command terminal, I don't know, but is it a
wanted feature and are R core aware of it? Note that, in Rgui it is
possible to interrupting such a loop by pressing ESC.
Cheers
Henrik
__
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