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

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...

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

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--

Bert Gunter
Genentech Nonclinical Biostatistics

Internal Contact Info:
Phone: 467-7374
Website:

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--
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.

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