[R] Creating a table

[David Barron]

addmargins(table(df))

On 14/11/06, Michael Graber <michael_graber at gmx.de> 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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-- 
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David Barron
Said Business School
University of Oxford
Park End Street
Oxford OX1 1HP