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Check for duplicate locations [message #92730]

Thu, 18 February 2016 08:48

Med Bennett
Messages: 109
Registered: April 1997

Senior Member

I have X,Y,Z data for several thousand points that I need to check for duplicate locations. I cannot have duplicated locations in the sample data, as it breaks the kriging algorithm I am using. I've always used a brute force method of computing a distance function between each point and all subsequent points, and flagging any points for which the distance is zero, or some small threshold. This method is very slow for larger numbers of points, however. Does anyone have a method for doing this more efficiently? I've found simple methods for one-dimensional data, but not for points in 3-space.

Thanks!

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[Message index]

		Check for duplicate locations By: Med Bennett on Thu, 18 February 2016 08:48
		Re: Check for duplicate locations By: Russell[1] on Mon, 22 February 2016 11:36
		Re: Check for duplicate locations By: Craig Markwardt on Wed, 24 February 2016 06:14
		Re: Check for duplicate locations By: Med Bennett on Thu, 25 February 2016 12:35

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