Euclidean distance explanation for a matrix
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A B C D
1 0 93.0000 12.0000 9.0000
2 14.0000 102.0000 75.0000 33.0000
3 0 5.0000 34.0000 33.0000
4 11.5000 50.0000 81.0000 36.0000
I have the above matrix. When I preform pdist(<above matric>,'euclidean') for euclidean distance, I got the following answer. Can somebody explain what these euclidean distance means for a (4 x 4) matrix above? I cannot understand how these values are calculated.
69.4406 93.8296 86.4364 106.2356 52.4905 66.1457
Thanks.
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Accepted Answer
Mischa Kim
on 14 Mar 2014
Edited: Mischa Kim
on 14 Mar 2014
Damit, computing the pdist of an m-by-n ( 4-by-4 in your case) matrix means computing the pairwise distance between each of the m rows. For 2 rows you get one result, for 3 rows 3 (1-2, 1-3, 2-3), for 4 rows 6.
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