[R] Nearest neighbors of a of 3D points

Eric Leroy |eroy @end|ng |rom |cmpe@cnr@@|r
Wed Feb 6 09:37:28 CET 2019


I have a text file that contains the 3D coordinates of points and I want 
to plot the histogram of the nearest neighbors distance. I can import 
the xyz coordinates in R and each value x, y, z is stored in a numerical 
array. I discovered the nndist.pp3 function from the spatstat package 
that seems to do what I want. My problem is to create a pp3 object from 
the xyz values that I have.

Do you know how to do that ?

Best regards,


*Eric Leroy*

/Responsable de la plateforme microscopie électronique/


2/8, rue Henri Dunant

94320 Thiais

Tél :

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courriel : eric.leroy using icmpe.cnrs.fr <mailto:eric.leroy using icmpe.cnrs.fr>

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