MATLAB: Making Pairs of Indices in Matrix- Pairwise Function

pairspairwise function

Hello,
I want to make a pairwise function in matlab simialar to how it is done in python. Or is there one already in matlab?
https://more-itertools.readthedocs.io/en/stable/api.html#more_itertools.pairwise
Overall, I am trying to return a list of pairs of indices in my matrix and then take the distance between each pair.
Any input would be greatly appreciated.
Thank you!

Best Answer

It depends what Matlab data-type you consider to be the equivalent of a Python tuple. I tend to think of cell arrays as the equivalent of a tuple because cells can store sequences of mixed types, but matrix form is generally the form in Matlab that will support most mathematical operations you might want to do. Below, I generate a set of pairs in both matrix and cell array form. 
n=4;
pairMatrix=[0:n-1;1:n].';
pairCell=num2cell(pairMatrix,2)
Overall, I am trying to return a list of pairs of indices in my matrix and then take the distance between each pair.
You mean, the Euclidean distances when each pair is viewed as a 2D coordinate? If you have the Statistics Toolbox, then this can be done using pdist2,
>> pdist2(pairMatrix,pairMatrix)
ans =
         0    1.4142    2.8284    4.2426
    1.4142         0    1.4142    2.8284
    2.8284    1.4142         0    1.4142
    4.2426    2.8284    1.4142         0
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