[R] Converting coordinates to actual distances

Bob Wheeler bwheeler at echip.com
Wed Sep 14 22:28:22 CEST 2005


Paul Brewin wrote:
> Hello,
> 
> I've been searching for a method of converting Lat/Lon decimal
> coordinates into actual distances between points, and taking into
> account the curvature of the earth.  Is there such a package in R?  I've
> looked at the GeoR package, but this does not seem to contain what I am
> looking for.  Ideally the output would be a triangular matrix of
> distances.  
> 
> Thanks in advance, 
> Paul Brewin
> 
> 
> 
> Paul E Brewin (PhD)
> Center for Research in Biological Systems
> University of California San Diego
> 9500 Gilman Drive MC 0505
> La Jolla CA, 92093-0505
> USA
>  
> Ph: 858-822-0871
> Fax: 858-822-3631
> 
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> 

See http://www.meridianworlddata.com/Distance-Calculation.asp. The 
calculations are trivial.


-- 
Bob Wheeler --- http://www.bobwheeler.com/
         ECHIP, Inc. ---
Randomness comes in bunches.




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