[R-sig-Geo] Help to eliminate duplicated from data.frame but Special Problem

[Georg Ruß]

On 09/03/11 15:42:40, gianni lavaredo wrote:
> Dear Reseacher,
> i need to resolve the following problem. I wish to delete duplicate row from
> a data.frame but not all duplicate row:
>
> ex:
>
> my.df <- data.frame(Id=c(1,2,3,4,5,5,6,7,8,8,8,9),
> value1=c(10,20,30,40,50,50,60,70,80,80,81,90),
> value2=c(100,200,300,400,500,500,600,700,800,800,799,900))
>
>
> > my.df
>    Id value1 value2
> 1   1     10    100
> 2   2     20    200
> 3   3     30    300
> 4   4     40    400
> 5   5     50    500
> 6   5     50    500
> 7   6     60    600
> 8   7     70    700
> 9   8     80    800
> 10  8     80    800
> 11  8     81    799
> 12  9     90    900

Does "unique(my.df)" solve your issue?

What's this got to do with R-sig-geo, anyway?

Regards,
Georg.
-- 
Research Assistant
Otto-von-Guericke-Universität Magdeburg
research at georgruss.de
http://research.georgruss.de