Hi Catalin,

The following should give you some ideas:

set.seed(123)
x <- rpois(50, 2)
x
idx <- duplicated(x)
x[idx] <- 0
x

Best,
Jorge.-



On Thu, Mar 13, 2014 at 11:35 PM, catalin roibu <catalinroibu@gmail.com>wrote:

> Dear all!
>
> Is there a possibility to replace all duplicates values in data frame with
> 0?
>
> Thank you very much!
>
>
>
> --
> ---
> Catalin-Constantin ROIBU
> Lecturer PhD, Forestry engineer
> Forestry Faculty of Suceava
> Str. Universitatii no. 13, Suceava, 720229, Romania
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