Dear All: 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. I do see the previous codes again when I open R the next day, after quitting the session! Q: How do I clear this? Thanks; YA -- View this message in context: http://r.789695.n4.nabble.com/Clearing-Console-of-weeks-of-codes-tp3447506p3447506.html Sent from the R help mailing list archive at Nabble.com.
click in console window and type rm(list=ls(all=TRUE)), everything will be gone -- View this message in context: http://r.789695.n4.nabble.com/Clearing-Console-of-weeks-of-codes-tp3447506p3448041.html Sent from the R help mailing list archive at Nabble.com.
> 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/
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 > > > ??????????????????????????????????????????????????????????????????????????? > 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/ > > ______________________________________________ > R-help at 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. > > >-- 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/
Thanks, I thought that removing the list would take care of it. the question is I do not see a .Rhistory file in my current working directory, so where it is stored. it is not visible in C:\Program files\R either. Serarching the C;\ and D:\ drives shows some old .Rhistory files but not the recent ones. Thanks -- View this message in context: http://r.789695.n4.nabble.com/Clearing-Console-of-weeks-of-codes-tp3447506p3449832.html Sent from the R help mailing list archive at Nabble.com.
On Thu, Apr 14, 2011 at 7:47 AM, 1Rnwb <sbpurohit at gmail.com> wrote:> Thanks, I thought that removing the list would take care of it. the question > is I do not see a .Rhistory file in my current working directory, so where > it is stored. it is not visible in C:\Program files\R either. Serarching the > C;\ and D:\ drives shows some old .Rhistory files but not the recent ones. > ThanksThe .Rhistory file is stored in the working directory. You hit on the issue exactly when you said, "it is not **visible**". Google something like: "windows files starting with period" to find directions for how to make it visible using Windows Explorer. Alternately you can use the command prompt, cd to navigate to the directory, "dir" to list the files and "del" to delete it (of course it can be done in one step if you know the path). Cheers, Josh> > -- > View this message in context: http://r.789695.n4.nabble.com/Clearing-Console-of-weeks-of-codes-tp3447506p3449832.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help at 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. >-- Joshua Wiley Ph.D. Student, Health Psychology University of California, Los Angeles http://www.joshuawiley.com/