Dear all, I got point data of trees. I was wondering if anybody has experience in searching the neighbors within a specified distance efficiently.
X Y Z 99 34 65 98 35 29 98 34 28 99 33 33 98 32 23 99 33 21 99 33 22 99 32 24 99 30 23 ... What I want to do is : searching for the neighbors with a distance R for each tree & the neighbor must have a bigger Z. The data set is huge so the R-codes is working slowly when I search it without subset it. Any suggestion would be much appreciated! Leaf
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