[R] Is 'history' recorded in Rscript?

[David Winsemius]

I get the same error in a bash session on a Mac. My assumption at this  
point is is that the authors of Rscript decided that you should  
already know what is in the input file and so left out that feature of  
the console program. Mavbe if you explained why you wanted what would  
generally be a straight copy of the input file, someone can offer a  
work-around strategy.

-- 
David
On Sep 5, 2009, at 11:26 AM, Peng Yu wrote:

> Hi,
>
> I run Rscript from the command line (bash). My OS is the following
>
> $ cat  /etc/redhat-release
> CentOS release 5 (Final)
> $ uname -a
> Linux selenium.cluster 2.6.18-53.1.13.el5 #1 SMP Tue Feb 12 13:02:30
> EST 2008 x86_64 GNU/Linux
> $ dmesg | grep gcc
> Linux version 2.6.18-53.1.13.el5 (mockbuild at builder6.centos.org) (gcc
> version 4.1.2 20070626 (Red Hat 4.1.2-14)) #1 SMP Tue Feb 12 13:02:30
> EST 2008
>
> I can use savehistory in an R session (that is after the R prompt
> '>'). My file 'savehistory.R' only have the following three lines.
>
> f=tempfile()
> f
> savehistory(f)
>
>
> I run the command 'Rscript savehistory.R' from the bash command line,
> which gave me the error I showed in my previous email. Can somebody
> try if he/she receives the save error?
>
> Regards,
> Peng
>
> On Sat, Sep 5, 2009 at 10:16 AM, David Winsemius<dwinsemius at comcast.net 
> > wrote:
>> You did not make it clear (to me anyway) what computing environment  
>> the
>> Rscript command was issued from. I assumed probably incorrectly  
>> that you
>> were doing this from inside an R session and did not understand  
>> that Rscript
>> was an external program. If I was wrong about that, then you are  
>> going to
>> need to provide more details about your operating system and how  
>> you have
>> set up your R installation.
>>
>> I also do not know what you mean by a "save session". Did you at  
>> some time
>> in the past execute a savehistory(file="savehistory,R") command at  
>> the end
>> of a session and it's now in the directory that Rscript look for?  
>> That would
>> be the only way that a savehistory.R file would exist.
>>
>> So what OS? What did you do before this failed effort? And what are  
>> you
>> really trying to do?
>>
>> Then perhaps someone familiar with your OS can answer.
>>
>> --
>> David
>>
>> .
>> On Sep 5, 2009, at 10:52 AM, Peng Yu wrote:
>>
>>> Hi,
>>>
>>> I got the following error. Does it mean that the files in the save
>>> session will not be saved in history in Rscript?
>>>
>>> $ Rscript savehistory.R
>>>>
>>>> f=tempfile()
>>>> f
>>>
>>> [1] "/tmp/RtmpMEGKVq/file327b23c6"
>>>>
>>>> savehistory(f)
>>>
>>> Error in savehistory(file) : no history available to save
>>> Execution halted
>>>
>>> Regards,
>>> Peng
>>>
>>> On Sat, Sep 5, 2009 at 1:04 AM, David Winsemius<dwinsemius at comcast.net 
>>> >
>>> wrote:
>>>>
>>>> You should be looking for .Rhistory
>>>>
>>>> Some OSes make that task difficult. "savehistory" is not the file  
>>>> name
>>>> but
>>>> rather the name of the function that performs that operation. Try
>>>> savehistory(file="text.Rhistory") and see if the history file is  
>>>> easier
>>>> to
>>>> find. Should be in your working directory.
>>>>
>>>> Rscript is a program, not a record of the prior session.
>>>>
>>>>
>>>> --
>>>>  David.
>>>>
>>>> On Sep 4, 2009, at 11:03 PM, Peng Yu wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> I run the following command and try to save the commands that have
>>>>> been run in the script. But it seems that no history is  
>>>>> recorded. Is
>>>>> it because that the history is not recorded in Rscript?
>>>>>
>>>>> Regards,
>>>>> Peng
>>>>>
>>>>> $ Rscript savehistory.R
>>>>>>
>>>>>> f=tempfile()
>>>>>> f
>>>>>
>>>>> [1] "/tmp/Rtmp7WBjGG/file327b23c6"
>>>>>>
>>>>>> history()
>>>>>
>>>>> Error in savehistory(file) : no history available to save
>>>>> Calls: history -> savehistory
>>>>> Execution halted
>>
>> David Winsemius, MD
>> Heritage Laboratories
>> West Hartford, CT
>>
>>
>
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT