R help - Oct 2007 - simple data.frame question

Hi,

At first I have to admit that I'm quite new to R and need some basic
information. Although I searched the internet and this forum where I found
answers to really sophisticated questions, I couldn't find the answer to my
really simple one - or I didn't understand it for English is not my
mothertongue. 
I'm using Rpad to simulate a webserver on my PC. Further I've got an
html
<form> with some checkboxes/radiobuttons. My first code-chunk attempts to
create a data.frame (but I don't know, if I've done it correct):

	statistik <- data.frame(car = factor(), ubahn = factor () [...], quantity
numeric())

When clicking on a button, I want to submit the values from the <form> to
the data.frame. 

        statistik <- c(car, autobus, ubahn, strassenbahn, bicycle, walk,
quantity)

When clicking another buttons I want to show the saved values.
    
	print(statistik)

What in fact happens is that by submiting the values, the first row of the
data.frame is overwritten. At least that's what it looks like to me. If you
need any further information, please let me know.
I'd allready be happy if you could point out what's the exact place to
look
for in some kind of manual. Thanks for your help! 

-- 
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Your first statement may create a data frame, but your second
statement now store a vector in an object with the same name, but is
now not a data frame, that is why it "appears" that the first row is
overwritten.  What are you trying to do?

On 10/23/07, pharos <patrick_schmoellerl at yahoo.de>
wrote:
>
> Hi,
>
> At first I have to admit that I'm quite new to R and need some basic
> information. Although I searched the internet and this forum where I found
> answers to really sophisticated questions, I couldn't find the answer
to my
> really simple one - or I didn't understand it for English is not my
> mothertongue.
> I'm using Rpad to simulate a webserver on my PC. Further I've got
an html
> <form> with some checkboxes/radiobuttons. My first code-chunk
attempts to
> create a data.frame (but I don't know, if I've done it correct):
>
>        [i]statistik <- data.frame(car = factor(), ubahn = factor ()
[...],
> quantity = numeric())[/i]
>
> When clicking on a button, I want to submit the values from the
<form> to
> the data.frame.
>
>        [i]statistik <- c(car, autobus, ubahn, strassenbahn, bicycle,
walk,
> quantity)[/i]
>
> When clicking another buttons I want to show the saved values.
>
>        [i]print(statistik)[/i]
>
> What in fact happens is that by submiting the values, the first row of the
> data.frame is overwritten. At least that's what it looks like to me. If
you
> need any further information, please let me know.
> I'd allready be happy if you could point out what's the exact place
to look
> for in some kind of manual. Thanks for your help!
>
> --
> View this message in context:
http://www.nabble.com/simple-data.frame-question-tf4679785.html#a13371775
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
> 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 you are trying to solve?