[R] distance by sea

jwd jwd at surewest.net
Sun Jun 8 08:00:20 CEST 2014

On Thu, 5 Jun 2014 14:58:11 +0200
Giulia Fassio <giuliafassio at gmail.com> wrote:

> Hello,
> someone know if it is possible to use R to calculate distance by sea
> between two geographic coordinates? I have many points in the sea and
> I want to create a matrix using R of the length of trajectories that
> pass only trough sea.
> Thanks
> Giulia

You need to be a great deal more detailed before you are likely to get
useful advice.  Are you trying to track a sea mammal for example?  Or
are you working out the course for a sea vessel to travel?


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