Is there any possibility in R to get a list of distances between all the points in a Scatterplot? For instance, this Scatterplot:enter image description here

So, I would like to obtain a list of distances among all the points.


closed as off-topic by Nick Cox, kjetil b halvorsen, Michael Chernick, mdewey, rolando2 Feb 6 '18 at 19:59

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check out the dist function.

 x <- c(1,2,3,6,3,6)
 y <- c(4,5,7,8,9,0)

produces the following output.

     1        2        3        4        5
2 1.414214                                    
3 3.605551 2.236068                           
4 6.403124 5.000000 3.162278                  
5 5.385165 4.123106 2.000000 3.162278         
6 6.403124 6.403124 7.615773 8.000000 9.486833
  • $\begingroup$ Perfect. And how could I reorder that matrix in two columns, the one on the left showing the two dots measured, and the one on the right the distances? $\endgroup$ – antecessor Feb 6 '18 at 12:54
  • $\begingroup$ tmp <- dist(cbind(x,y)) now suppose $i > j$, the distance between point $i$ and point $j$ is stored in tmp[i-1][j]. $\endgroup$ – Siong Thye Goh Feb 6 '18 at 13:04

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