# Combinations of matrix rows

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Amy Diekmann 2017 年 9 月 17 日
コメント済み: KSSV 2017 年 9 月 19 日
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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### 採用された回答

KSSV 2017 年 9 月 18 日
You need not to see for possible combinations.....read about the function pdist. It gives distance among all possible points.
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KSSV 2017 年 9 月 19 日
Yes...why not.....check the min of the matrix...and it's indices should give you the concerned points..

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