[R] extract arguments from a list

David Barron mothsailor at googlemail.com
Thu Oct 19 11:25:27 CEST 2006


First, that isn't what is called a "list" in R, it is a character vector.

Second, to get what you want, try

> sort(unique(x))
[1] "Atrazine"          "Atrazine desethyl" "Bentazone"
[4] "Epoxiconazol"      "Fenpropimorph"     "Metolachlor"
[7] "Simazine"

On 19/10/06, jessica.gervais at tudor.lu <jessica.gervais at tudor.lu> wrote:
> Hi,
>
> I would like to know how to extract the arguments from a list :
>
> For example, I have a list of charchacter x
> x<-
> c("Bentazone","Atrazine","Epoxiconazol","Metolachlor","Epoxiconazol","Atrazine
> desethyl","Fenpropimorph","Epoxiconazol","Metolachlor","Simazine","Atrazine
> desethyl","Epoxiconazol","Atrazine
> desethyl","Atrazine","Epoxiconazol","Metolachlor","Epoxiconazol","Atrazine
> desethyl","Fenpropimorph","Epoxiconazol","Metolachlor","Simazine")
>
> and I am searching for a (basic) function which would return arguments of
> the list x, aphabeticaly reordered like this :
>  ("Atrazine","Atrazine
> desethyl","Bentazone","Epoxiconazol","Fenpropimorph","Metolachlor","Simazine").
>
>
> Can anyone help me ?
>
>
> Thanks by advance
>
> Jessica
>
>
>
>
>         [[alternative HTML version deleted]]
>
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-- 
=================================
David Barron
Said Business School
University of Oxford
Park End Street
Oxford OX1 1HP



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