[R] Euclidean Distance in R

From: Paul Duckett <paul.duckett_at_mq.edu.au>
Date: Tue, 05 Apr 2011 11:43:54 +1000


  1. I have two raster files *.asc (identical size)
  2. The data in each contain presence or absence data in each cell represented by a 1 or 0 respectively
  3. I would like to take the location of each 1 (presence cell) in raster file 1 and measure the euclidean distance to the nearest 1 (presence cell) in raster file 2.

Obviously in some cases there will be overlap so the distance will be zero.

4. I would like the output file to have each individual measurement on a seperate line in a single file.

I am very new to R, so any help would be appreciated.

Best regards

Paul Duckett - PhD Candidate
Conservation Genetics Lab
E8A 264
Biological Sciences
Faculty of Science
Macquarie University
North Ryde
NSW 2109

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Received on Tue 05 Apr 2011 - 08:15:08 GMT

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