How to obtain Euclidean Distance for multiple points?

Question

Selina Loh 2017-10-20

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/362256-how-to-obtain-euclidean-distance-for-multiple-points

回答： KSSV 2017-10-20

After using the plotmatrix function to plot the graph. Is it possible to calculate the Euclidean Distance for the points ploted?

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Answer 1

Walter Roberson 2017-10-20

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https://ww2.mathworks.cn/matlabcentral/answers/362256-how-to-obtain-euclidean-distance-for-multiple-points#answer_286763

在 MATLAB Online 中打开

nx = size(X,2);
ny = size(Y,2);
dists = cell(nx, ny);
for yidx = 1 : ny
  for xidx = 1 : nx
    dists{xidx, yidx} = squareform( pdist( [X(:,xidx), Y(:,yidx)] ) );
  end
end

dists will now be a cell array of matrices, each of which is a square matrix giving the distance from every point in the column combination to each other point in that combination.

I had to assume here that your X and Y might contain multiple columns, since that is the main reason to use plotmatrix()