Hello David,
yes! this is what I was looking for!
Thank you very much for your help.
Marion
2012/4/2 David Winsemius <dwinsem...@comcast.net>
>
> On Apr 2, 2012, at 7:11 AM, Marion Wenty wrote:
>
> Dear people,
>>
>> I would like to create a table out of a data.frame.
>>
>> How can I determine, which variables are put in the rows and which in the
>> columns?
>> I would like to get all the variables in the ROWS:
>>
>> I am including a simple example:
>>
>> D<-data.frame(age=c(8,9,10),**county=c("B","W","W"))
>>
>> the output should have the following structure:
>>
>> 8 B 1
>>
>> 8 W 0
>>
>> 9 B 0
>>
>> 9 W 1
>>
>> 10 B 0
>>
>> 10 W 1
>>
>
> You can use the order() function with "[" to rearrange this to suit you
> needs:
>
> > as.data.frame(xtabs(~age+**county, data=D))
> age county Freq
> 1 8 B 1
> 2 9 B 0
> 3 10 B 0
> 4 8 W 0
> 5 9 W 1
> 6 10 W 1
>
>>
>>
>> [[alternative HTML version deleted]]
>>
>
> Posting in HTML is considered impolite on Rhelp.
>
> --
>
> David Winsemius, MD
> West Hartford, CT
>
>
[[alternative HTML version deleted]]
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