addmargins(table(df))
On 14/11/06, Michael Graber <[EMAIL PROTECTED]> wrote:
> Dear R List,
>
> I am a new to R, so my question may be easy to answer for you:
>
> I have a dataframe, for example:
>
> df<-data.frame(loc=c("A","B","A","A","A"),
> year=as.numeric(c("1970","1970","1970","1976","1980")))
>
> and I want to create the following table without using loops:
>
> 1970-74 ; 1975-79 ; 1980-85; rowsum
> A 2 1 1 4
> B 1 0 0 1
> colsum 3 1 1 5
>
> so that the frequencies of df$loc are shown in the table for different
> time intervals.
>
> Thanks in advance for any hint,
>
> Michael Graber
>
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>
--
=================================
David Barron
Said Business School
University of Oxford
Park End Street
Oxford OX1 1HP
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