[R] R TERMINAL Vs R GUI

[vinay_rk]

Hi 

I send commands to R using an IDE. Configured a few hotkeys to send the
commands to R. I am using Tinn-R and it has options to open a RGUI or RTerm. 

My datasets are in the range of 600 MB - 2GB and I generally use scan() or
filehash to work on such data sets. However there are times when I read the
entire dataset in to R. Obviously it  eats up a lot of memory and I am aware
of it. However what I have noticed is , if I keep performing operations , I
get a message that "cannot allocate vector of XYZ MB"  in RGUI.  However R
Term doesn't crib that often.

This is just my observation after running very many scripts that RTERM is
faster than RGUI. I was wondering whether this observation is a correct one
or not ? Anyways after seeing the speed of ops in Rterm, I no longer use
RGUI ... I cannot explain the rationale based on any R specific reason..I
have just found over a period of time that RTerm works faster...Yes, I do
loose out on some of the menu driven functions that RGUI provides...

So, just to reiterate my basic question, Have members in this forum found
any difference in speeds while working with RTerm Vs RGui? Or Do you all
think speeds should be the same and I am seeing some random behavior which
has nothing with to do with R ?

Regards
Vinay 




jholtman wrote:
> 
> Exactly what are you doing and how are you 'sending' in the commands?
> Are you doing a cut/paste to the RGUI?  If so, have you tried
> 'source'?  I use RGUI all the time and have no performance/memory
> problems with executing scripts; I always 'source' in most of the
> scripts.
> 
> Some more detail on exactly what you are doing in both environments
> would help to understand your problem.
> 
> On Sat, Jul 4, 2009 at 4:34 PM, vinay_rk<radhakrishna.pendyala at gmail.com>
> wrote:
>>
>> Hello everyone,
>>
>> This is my first post on this forum and I hope I communicate my problem
>> correctly.
>>
>> I have been using R for sometime and have always used RGUI to send
>> commands
>> to R. However recently I had to work on large data sets and memory was an
>> issue. I have started using R terminal and the speed of operations has
>> improved considerably .
>>
>> Is this always the case ? Should one follow as an informal guide line
>> that R
>> terminal hogs less memory than RGUI. Or Am I witnessing some random
>> behavior
>> and it doesn't matter which ever interface you use ?
>>
>> Thanks in advance for your suggestions
>> Regards
>> Vinay
>> --
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>>
>> ______________________________________________
>> 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.
>>
> 
> 
> 
> -- 
> Jim Holtman
> Cincinnati, OH
> +1 513 646 9390
> 
> What is the problem that you are trying to solve?
> 
> ______________________________________________
> 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.
> 
> 

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