Clearing Console; of weeks of codes!
Please reply to the list, so the OP and otheres following the thread can see your contributions. I'm taking this back to r-help.
On Thu, Apr 14, 2011 at 01:43:31AM -0700, Mohammad Tanvir Ahamed wrote:
you can try it ... rm(list=ls())
No - this has been suggested before and saying it gain does not make it less wrong: rm() will delete objects from the workspace but has absolutely no effect on the history. cu Philipp
/.......Tanvir Ahamed
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From: Philipp Pagel <p.pagel at wzw.tum.de>
To: r-help at r-project.org
Sent: Thursday, April 14, 2011 10:23 AM
Subject: Re: [R] Clearing Console; of weeks of codes!
> I do see I have weeks of codes in my console when I check with my arrow
up
> keys. I have been clearing them with Control L but it seems to clear it
> clear the screen temporally.
CTRL-L simply clears the screen and not the history.
> I do see the previous codes again when I open R
> the next day, after quitting the session!
>
> Q:
> How do I clear this?
What you are seeing is the R history which is stored in the file
.Rhistory in the current working directory when the session is closed
or savehistory() is used. Deleting that file before starting R will
"clear" the history. I am not sure you can clear the history of a
running R session. Deleting the file will not work while the session
is open because the history is in memory at that time and I am not
aware of a command to manipulate the current history.
The environment variable R_HISTSIZE can be used to control the size
of the history.
see ?history for details.
cu
Philipp
--
Dr. Philipp Pagel
Lehrstuhl f r Genomorientierte Bioinformatik
Technische Universit t M nchen
Wissenschaftszentrum Weihenstephan
Maximus-von-Imhof-Forum 3
85354 Freising, Germany
http://webclu.bio.wzw.tum.de/~pagel/
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Dr. Philipp Pagel Lehrstuhl f?r Genomorientierte Bioinformatik Technische Universit?t M?nchen Wissenschaftszentrum Weihenstephan Maximus-von-Imhof-Forum 3 85354 Freising, Germany http://webclu.bio.wzw.tum.de/~pagel/