Message-ID: <1628514766.23197020.1466184392035.JavaMail.zimbra@sfu.ca>
Date: 2016-06-17T17:26:32Z
From: Alice Domalik
Subject: Excluding coordinates that fall within a circle
In-Reply-To: <130565413.23175770.1466183644080.JavaMail.zimbra@sfu.ca>
Hi List,
I'm working with some bird tracking data, and to filter the data set, I need to exclude points taken at the colony.
I would like to exclude coordinates from within a 500 meter radius of a point centered on the colony.
However, as an R novice, I'm not sure how to accomplish this.
My df looks like this:
AnimalID Latitude Longitude Datetime
Any suggestions would be greatly appreciated.
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