Is there a function that will allow me to convert a Euclidean distance calculation for two vectors in a matrix to all the vectors in the matrix?

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The code I have currently converts any two rows of 4096 image vectors within a matrix which I have named allData. e.g.
diffs = allData(1,:) - allData(2,:) % 1 being the first row of vectors...
diffsSq = diffs .*diffs
Is there a Matlab function that can maintain this calculation and iterate over all the image rows comparing each with each and then allow me to take the average(mean) of the result. I know thats a lot of calculations but hopefully it will make my result more accurate than just comparing distance between two images.
I suppose the mean is just one line of code e.g. result = mean(allData,dist) or something to that effect.
I appreciate any guidance you can share, thank you

Accepted Answer

Von Duesenberg
Von Duesenberg on 25 Mar 2018
If I understand your question correctly, this should do the trick:

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