For rows and 2 columns, containing xOy coordinates of the point. Look for the two points with the furthest distance and return the row index of those two points.

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Phung Khai 2021-10-23

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https://ww2.mathworks.cn/matlabcentral/answers/1569948-for-rows-and-2-columns-containing-xoy-coordinates-of-the-point-look-for-the-two-points-with-the-fu

回答： Chunru 2021-10-23

Please, Can y help me :

For rows and 2 columns, containing xOy coordinates of the point. Look for the two points with the furthest distance and return the row index of those two points.

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Answer 1

Chunru 2021-10-23

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https://ww2.mathworks.cn/matlabcentral/answers/1569948-for-rows-and-2-columns-containing-xoy-coordinates-of-the-point-look-for-the-two-points-with-the-fu#answer_814648

在 MATLAB Online 中打开

n = 8;
xy = rand(n, 2);
d = pdist(xy);
D = squareform(d)
D = 8×8
         0    0.7326    0.0969    0.6177    0.0679    0.3563    0.4383    0.6051
    0.7326         0    0.8275    0.1851    0.7570    0.9674    0.3597    0.2801
    0.0969    0.8275         0    0.7146    0.1120    0.2977    0.5343    0.7009
    0.6177    0.1851    0.7146         0    0.6287    0.9018    0.1958    0.0989
    0.0679    0.7570    0.1120    0.6287         0    0.4032    0.4407    0.6054
    0.3563    0.9674    0.2977    0.9018    0.4032         0    0.7528    0.9152
    0.4383    0.3597    0.5343    0.1958    0.4407    0.7528         0    0.1668
    0.6051    0.2801    0.7009    0.0989    0.6054    0.9152    0.1668         0
[~, idx]= max(D(:));
[i, j] = ind2sub([n n], idx)
i = 6
j = 2