Hi Nils,

I'm no expert and I've only done this once for a "small" dataset with a big
polygon file... but have a look at

?sp::overlay

Kind regards,
Sean O'Riordain
Dublin



On 7 January 2011 10:37, Breitbach, Nils <breitbach@uni-mainz.de> wrote:

> Derar community,
>
> this time I need to find habitat type on given location for a huge number
> of points. I have two layers: the first (upper) one is a point shape with
> approx. 100,000 point locations; the second one is a polygon shape with many
> features containing habitat types (on a very fine scale). Now, I need the
> habitat type "under" every point or better said for every point location.
>
> The "Spatial Join" Tool in ESRI's ArcGIS  would do exactly what I need but
> since I did all my analyses with R so far I really would like to avoid the
> permanent jumping between R and ArcGIS. Is there a function in R that solves
> my problem?
>
> Cheers,
>
> Nils
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