Finding object pairs from pdist output

I used the pdist function to find the distances between a number of objects and would like to know the 10 smallest distances and which between which objects those distances are.

I have so far obtained the 10 smallest distances and their index values in the output vector through sorting. However, I don't know how I can use the index values to get what I want, which is i and j values (if the distances between all objecst were expressed in a full square form matrix).

How can I use the index values from the pdist output vector to work out i and j?

Thank you very much.

Answer 1

[KSSV]

Let D be the pdsit output....

iwant = D(i,j) ;

Read about MATLAB matrix indexing here: https://in.mathworks.com/company/newsletters/articles/matrix-indexing-in-matlab.html