Hi Aurelie,
If your points and grid are objects of the spatial class you can use the
function "over" in the sp package. The overlay of points on polygons
returns a vector with the polygon index where each point is located.
Julian
--
Julian Mariano Burgos, PhD
Hafrannsóknastofnunin/Marine Research Institute
Skúlagata 4, 121 Reykjavík, Iceland
Sími/Telephone : +354-5752037
Bréfsími/Telefax: +354-5752001
Netfang/Email: [email protected]
On 01/16/2013 01:40 PM, Aurelie C.Godin wrote:
Hello,
I have a point pattern and a tessellation (grid). Is there a way to
spatially index each of my points? In other words, my tessellation grid has
/n/ quadrats, I would like to know for each of my points which of these
/(1:n)/ quadrats they are associated with.
If not, is there another way to do so?
Many thanks for your suggestions!
-----
Aurelie Cosandey-Godin
Ph.D. Student, Department of Biology, Dalhousie University
Industrial Graduate Fellow, WWF-Canada
Email: [email protected] | Web: wormlab.biology.dal.ca
--
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