Distance from points to points.

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Francesco 2014-2-5

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https://ww2.mathworks.cn/matlabcentral/answers/114987-distance-from-points-to-points

编辑： Francesco 2014-3-22

采纳的回答： Walter Roberson

It's possible to read these coordinates from a text file formatted in this way:

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Image Analyst 2014-2-5

Isn't this a duplicate of http://www.mathworks.com/matlabcentral/answers/114838#answer_123302 which already has people responding?

Francesco 2014-2-5

It's not exactly the same questions.

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Walter Roberson 2014-2-5

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https://ww2.mathworks.cn/matlabcentral/answers/114987-distance-from-points-to-points#answer_123396

http://www.mathworks.com/help/stats/pdist.html

The identifier would be the row index of D.

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Francesco 2014-2-5

在 MATLAB Online 中打开

Thanks. In general If I have n points I have to do this, where rows is the numbers of rows of the txt file.

[X, Y] = ndgrid(1:rows);
identifiers = arrayfun(@(X,Y) sprintf('%d_%d', X, Y), X, Y, 'Uniform', 0);

How Can I use pdist? What can I enter as input?

Walter Roberson 2014-2-5

Your previous question asked about using identifiers of that form and defined what the identifiers should look like. This question asks about using linear identifiers of the form 1, 2, 3, ... 6 .... n*(n-1)/2. But you have not given any indication of how the two are to fit together.

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