[R-sig-Geo] For each point, distance to nearest point in second dataset

Michael Sumner mdsumner at gmail.com
Thu May 19 23:59:21 CEST 2016


Use nabor package, it takes a little to learn but is crazy fast.

Happy to show if you make a relevant example.
Mike

On Fri, May 20, 2016, 06:42 Nick Eubank <nickeubank at gmail.com> wrote:

> Hi All,
>
> Trying to an equivalent to the "nearest" tool in ArcGIS for two
> SpatialPointDataFrames. I can do the naive implementation by calculating
> all pairwise distances using gDistance and taking the min, but I have some
> huge datasets and was looking for something more efficient. (For example,
> here's a trick with knearneigh for points in same dataset (
>
> http://gis.stackexchange.com/questions/132384/distance-to-nearest-point-for-every-point-same-spatialpointsdataframe-in-r
> )).
>
> Any suggestions?
>
> Thanks!
>
> Nick
>
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-- 
Dr. Michael Sumner
Software and Database Engineer
Australian Antarctic Division
203 Channel Highway
Kingston Tasmania 7050 Australia

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