[R] user input in R

[Petr PIKAL]

And try also search 

statsrus

The first hit shall be Paul Johnsons's howto's which helped me several 
years ago especially with basic issues.

Regards
Petr



r-help-bounces at r-project.org napsal dne 10.10.2009 18:00:19:

> > I'm just learning R (I don't know any other programming languages),
> >   and I have a question. I am trying to figure out how to ask for user
> >   input (say, a set of 3 numbers) then put those numbers into an 
array.
> >   I've looked around, but I haven't been able to find any answers that 
I
> >   understand.
> >   Thanks!
> 
> Astoundingly, finding out how to load my own datasets was one of the 
hardest 
> things for me to find information on when I was new to R and I had 
> considerable programming experience.  Part of the problem was that I 
didn't 
> yet know exactly what R documentation was available or how to easily 
access 
> it.  Further, veteran users tend to assume loading datasets is easy, and 

> much documentation and sample code uses 'generated data'.  Thus, sample 
code 
> demonstrating 'loading datasets' is a little hard to find when you are 
> starting out!
> 
> The official recommendation would go something like, "You probably want 
to 
> read the Import/Export documentation."    You can find this on Windows 
GUI 
> under help | manuals | Data Import/Export.  Of course you proably also 
need 
> to read chapter 7 of An Introduction to R which is also linked under 
manuals 
> in the help menu.  That said, I offer some beginner cheats you might 
find 
> useful below.  I particularly recommend the Verzzani Appendix.
> 
> Things you could type at the command line to learn more about different 
ways 
> to enter data are:
> ?scan
> ?read.table
> ?read.delim
> ?read.csv
> 
> "Beginner cheats Suggestions"
> 
> If you want GUI data input (of dataframes), I'd suggest installing and 
> running the Rcmdr package.  It lets you load many types of datasets, 
> including Excel files.  These can be used within Rcmdr or from the 
command 
> line.
> 
> If you are really new to R, I suggest looking at some of the contributed 

> documentation to get a feel for how things are done as well as how to 
load 
> user data
> http://cran.us.r-project.org/other-docs.html
> 
> In particular, look at the appendix in John Verzzani's document to see a 

> pragmatic description of using scan to input user data.  (see Appendix: 
> Entering Data in R on p. 103 or so).
> http://cran.us.r-project.org/doc/contrib/Verzani-SimpleR.pdf
> 
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