Dear R-user,

I would like to change the projection of a shapefile using R, but can't get
it.
I know that the shapefile is projected in CSG67 (French Guiana) ( see :
http://spatialreference.org/ref/epsg/4623/ ), but seems not to be defined in
the shapefile.
I would like to change this projection in WSG84 N22.
Here is what I did:

> gap<-readShapePoly("Donnees/Paracou_PT/ArcView_export/Gaps 2000 Topo
FM.shp")
> proj4string(gap)
[1] NA
> proj4string(gap)<-CRS("+init=epsg:4623")
Erreur dans `proj4string<-`(`*tmp*`, value = <S4 object of class "CRS">) :
  Geographical CRS given to non-conformant data
> proj4string(gap)<-CRS("+proj=longlat +ellps=intl
+towgs84=-186,230,110,0,0,0,0 +units=m")
Erreur dans `proj4string<-`(`*tmp*`, value = <S4 object of class "CRS">) :
  Geographical CRS given to non-conformant data


Sorry for any redundancy with previous post and thank you for your help.
Best regards,
Ervan
-- 
_____________________________

Ervan Rutishauser
Tropical forest ecology and dynamics
** <http://www.researcherid.com/rid/A-9076-2011>

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