see ?unique

 Justin BEM
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________________________________
De : "ARNAUD_MOSNIER@UQAR.QC.CA" <ARNAUD_MOSNIER@UQAR.QC.CA>
À : r-help@r-project.org
Envoyé le : Mardi, 10 Mars 2009, 17h15mn 57s
Objet : [R] (no subject)


Dear R users,

I have a table with the following form

STATION  X       Y
1        -70    30
1        -70    30
1        -70    30
2        -72    29
2        -72    29
2        -72    29
2        -72    29

How want to extract unique value for those columns ... I am sure it is very[[elided Yahoo spam]]

I want to obtain something like

STATION    X     Y
1        -70    30
2        -72    29

Thanks !!!

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