Combinations of matrix rows

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Amy Diekmann
Amy Diekmann 2017-9-17
评论： KSSV 2017-9-19
I have a matrix of x and y coordinates of points. I used nchoosek to figure out how many different combinations I can have, but how do I get MATLAB to do those combinations? A=[x coord. y coord.] =[1 2; 2 2;3 5;4 7;7 1] I have 5 points and I need to determine the minimum distance between all points (i.e. between points 1 and 2, between points 1 and 3, between points 1 and 5, between points 2 and 3, etc).

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KSSV
KSSV 2017-9-18
You need not to see for possible combinations.....read about the function pdist. It gives distance among all possible points.
https://in.mathworks.com/help/stats/pdist.html
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KSSV
KSSV 2017-9-19
Amy Diekmann commented: Is there a way to determine which two coordinates gives the smallest distance? Thanks!
KSSV
KSSV 2017-9-19
Yes...why not.....check the min of the matrix...and it's indices should give you the concerned points..

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