[R] Calculating angle of a polyline

Jeff Newmiller jdnewmil at dcn.davis.ca.us
Tue Jan 30 15:34:04 CET 2018

A polyline by definition has many angles, so your question is ill-formed. And this is a question about math, not R, so is off topic here. I suggest reading Wikipedia.
Sent from my phone. Please excuse my brevity.

On January 29, 2018 11:10:02 PM PST, javad bayat <j.bayat194 at gmail.com> wrote:
>Dear R users
>I am trying to find a formula to calculate the angle of a polyline. Is
>there a way to do this?
>Many thanks.

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