[R] how to view/edit large matrix/array in R?

[Liviu Andronic]

On Tue, Dec 6, 2011 at 4:42 AM, Michael <comtech.usa at gmail.com> wrote:
> I didn't mean the speed of saving the file is slow... I meant the manual
> procedures of exporting and then opening Excel, etc. is slow and
> inconvenient and unproductive...
>
You may want to use RExcel then.

Liviu


> On Mon, Dec 5, 2011 at 9:38 PM, R. Michael Weylandt <
> michael.weylandt at gmail.com> <michael.weylandt at gmail.com> wrote:
>
>> I think what most everyone is getting at is that the visual identification
>> of numeric outliers is an exceedingly difficult task and one we humans are
>> not well evolved for. Rather they are all suggesting you use visual
>> techniques to spot and fix outliers individually. This practice has a long
>> and reputable history in statistics and has been shown to be far more
>> efficient than simply scanning pages of numbers for a single misplaced
>> decimal. In conjunction, I'd also recommend use of the identify() function,
>> which serves just this purpose.
>>
>> If you have so much data that the csv export is unbearably slow it seems
>> unlikely you can check it all by hand.
>>
>> Another, more general, methodology if you are worried about data
>> corruption is to use robust statistics when applicable.
>>
>> Michael
>>
>> On Dec 5, 2011, at 10:27 PM, Michael <comtech.usa at gmail.com> wrote:
>>
>> > In R-Studio, "edit" gives non-grid based format which is similar to
>> "fix"...
>> >
>> > But exporting to Excel is time-consuming...
>> >
>> > On Mon, Dec 5, 2011 at 9:17 PM, jim holtman <jholtman at gmail.com> wrote:
>> >
>> >> 'edit' does allow you to change it.  If all else fails, export to
>> >> Excel, split the screen and then synchronize the two displays.
>> >>
>> >> On Mon, Dec 5, 2011 at 9:52 PM, Michael <comtech.usa at gmail.com> wrote:
>> >>> View doesn't allow editing? And not multi-window so I cannot put
>> >> variables
>> >>> side-by-side for comparsion? Thanks!
>> >>>
>> >>> On Mon, Dec 5, 2011 at 7:37 PM, jim holtman <jholtman at gmail.com>
>> wrote:
>> >>>>
>> >>>> Have you tried
>> >>>>
>> >>>> ?View
>> >>>> ?edit
>> >>>>
>> >>>> On Mon, Dec 5, 2011 at 8:12 PM, Bert Gunter <gunter.berton at gene.com>
>> >>>> wrote:
>> >>>>> ... and do you really think perusing thousands of numbers by eye is
>> >>>>> any way to edit/check data?!
>> >>>>>
>> >>>>> Personal viewpoint: I would say that this is a large area of
>> >>>>> statistics and data analysis that the discipline fails to address in
>> >>>>> any systematic way ... perhaps because there is no way to address it
>> >>>>> systematically? Contrary views and corrections -- especially
>> >>>>> references! -- would be very welcome.
>> >>>>>
>> >>>>> My advice would be: graphics! -- but I can't provide anything more
>> >>>>> useful without the specifics of the problem.
>> >>>>>
>> >>>>> Some packages may provide the interactivity you seek -- check the
>> CRAN
>> >>>>> GUI task view, R Commander, etc.
>> >>>>>
>> >>>>> -- Bert
>> >>>>>
>> >>>>> On Mon, Dec 5, 2011 at 5:01 PM, Michael <comtech.usa at gmail.com>
>> >> wrote:
>> >>>>>> head, tail and fix commands don't really work well if I have large
>> >>>>>> matrix/array for which I would like to be able to scroll up and dow,
>> >>>>>> left
>> >>>>>> and right ...
>> >>>>>>
>> >>>>>> Could anybody please help me?
>> >>>>>>
>> >>>>>> Thanks
>> >>>>>>
>> >>>>>>       [[alternative HTML version deleted]]
>> >>>>>>
>> >>>>>> ______________________________________________
>> >>>>>> 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<http://www.r-project.org/posting-guide.html>
>> <http://www.r-project.org/posting-guide.html>
>> >>>>>> and provide commented, minimal, self-contained, reproducible code.
>> >>>>>
>> >>>>>
>> >>>>>
>> >>>>> --
>> >>>>>
>> >>>>> Bert Gunter
>> >>>>> Genentech Nonclinical Biostatistics
>> >>>>>
>> >>>>> Internal Contact Info:
>> >>>>> Phone: 467-7374
>> >>>>> Website:
>> >>>>>
>> >>>>>
>> >>
>> http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm
>> >>>>>
>> >>>>> ______________________________________________
>> >>>>> 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<http://www.r-project.org/posting-guide.html>
>> <http://www.r-project.org/posting-guide.html>
>> >>>>> and provide commented, minimal, self-contained, reproducible code.
>> >>>>
>> >>>>
>> >>>>
>> >>>> --
>> >>>> Jim Holtman
>> >>>> Data Munger Guru
>> >>>>
>> >>>> What is the problem that you are trying to solve?
>> >>>> Tell me what you want to do, not how you want to do it.
>> >>>
>> >>>
>> >>
>> >>
>> >>
>> >> --
>> >> Jim Holtman
>> >> Data Munger Guru
>> >>
>> >> What is the problem that you are trying to solve?
>> >> Tell me what you want to do, not how you want to do it.
>> >>
>> >
>>  >    [[alternative HTML version deleted]]
>> >
>> > ______________________________________________
>> > 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<http://www.r-project.org/posting-guide.html>
>> > and provide commented, minimal, self-contained, reproducible code.
>>
>
>        [[alternative HTML version deleted]]
>
> ______________________________________________
> 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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