# I have a set of 3D points (x,y,z) , I want to take each point and calculate the sum of distances from all other points from this point and find the minimum of it , could you help me with codes?

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### Answers (2)

Image Analyst
on 30 Jun 2014

Edited: Image Analyst
on 30 Jun 2014

Did you try this:

distances = sqrt((xp - xyz(:,1))^2 + (yp - xyz(:,2))^2 + (zp - xyz(:,3))^2);

sumOfDistances = sum(distances);

[minDistance, indexOfMin] = min(distances);

where (xp, yp, zp) is the single point, and xyz is the array of all points?

##### 2 Comments

Image Analyst
on 1 Jul 2014

So put it inside a loop over p and do that code for every point p. Why can't you do that?

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