[Blindmath] Two questions for those who use R

Roopakshi Pathania r_akshi_tgk at yahoo.com
Sun May 16 18:46:32 UTC 2010


It’s getting late and I need to sleep, but couldn’t resist this one.
Faiz, I assume that the SPSS option did not work out, so you are back to R?

To answer your questions with a bit of overlapping on what Christine has already mentioned: 

1.	R output can be sent to a text file using sink()
Here is the code you would use. Note that in this case, I have not specified the path to my file so R will by default save it in the "My Documents" folder. Note also that I have used the symbol “#” to enter comments into my code. I’m only doing this to explain the process.

# Open the connection

# Enter something
x <- c(1, 2, 3, 4, 5)

# End the connection

Remember that if you don’t understand how a function works, you can always query R by typing a question mark before the function name on the R terminal.
So in this case, do check out ?sink() and ?capture.output

2.	Yes, you can explore the R terminal using the Jaws cursor, but a more efficient way would be to use what is called an Invisible cursor under Jaws. For those who use NVDA, this is also known as the Review cursor and in both screen readers, its function is to explore command line interfaces under Windows. The Invisible cursor can be activated using Jaws key + P pressed twice quickly. This is under the laptop layout. For more information, you should read the Jaws documentation on cursors. For other screen readers, similar cursors exist that let you navigate the command line window.


--- On Sun, 5/16/10, faiz rasool <faiz7r at gmail.com> wrote:

> From: faiz rasool <faiz7r at gmail.com>
> Subject: [Blindmath] Two questions for those who use R
> To: blindmath at nfbnet.org
> Date: Sunday, May 16, 2010, 2:48 PM
> Hi All:
> I am trying to familiarize myself with R's environment. I
> have two
> questions. I would like to know that are there any options
> of
> exporting the contents of rterm to any text processor?
> preferably
> Word? I would like to see the content of rterm on a text
> processor so
> I can develop a better feel for what R is doing. typing
> data=c(1,2,3,4,5)
> and then hearing > makes you feel that somehow you
> are  not
> interacting with the program. My second question is if we
> can export
> or copy the contents of rterm to a text processor, can we
> preserve the
> formatting of tables we have created in R? when you type
> table(X,Y)
> in R, jaws announces the numbers R prints on the screen.
> But I do not
> receive any information about the number of rows and
> columns.
> Similarly in  my limited experience when you use the
> arrow keys in
> rterm you mostly get to hear the functions you have typed.
> any
> suggestions on how to get more infromation about the tables
> R creates
> and reading contents of rterm in a text processor?
> Thanks all,
> faiz.
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