How to measure the shortest distance among different points using Matlab
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Lets suppoese i have the points as shown by B. For example, P1(1,1,2 ), P2(1,2,3 ) etc as shown by B. I want to measure the shortest distance among these points.
x = B(:,1), y =B(:,2) and z = B(:,3).
Thanks in advance for support from community members. Regards!
B =
1 1 3
1 2 3
2 3 1
2 3 2
3 1 1
3 3 1
3 3 2
5 Commenti
Risposte (1)
Jakob
il 28 Ott 2020
B = randi([-10 10],5,3); % just some random numbers
minimum = sqrt(sum((B(1,:)- B(2,:)).^2));
for i = 1 : size(B,1)-1
for j = i+1 : size(B,1)
minimum = min(minimum,sqrt(sum((B(i,:)- B(j,:)).^2)));
end
end
disp(minimum)
3 Commenti
Jakob
il 10 Mar 2021
Hi again, sorry I can't reply in private to your email.
About your question:. "I think pdist2() can only be used for 2D, right.".
Be careful, pdist2() works different then pdist(), you can safely use
min(pdist(YOURMATRIX))
to measure the minimal distance for any dimension. It's basically the same as my code
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