Worlds longest solution winner please, cody!

This Solution works perfectly on MATLAB. Why not here? Need help

my solution passes all the tests in matlab R2011a

function [index1, index2] = nearestNumbers(A)

s=[1,1,Inf];
for i = 1:length(A)-1
for j= 1:length(A)-i
s1=[i,i+j,abs(A(i)-A(i+j))];
if s1(3)<s(3)
s=s1
end
end
end
index1 = s(1);
index2 = s(2);
end

This passed all of the test cases when using MATLAB on my computer, yet it fails here. Anyone know what's wrong with it? I'd appreciate it!

Hard, but doable!

I really liked this problem and although I provided a lot of code to solve it I am pleased with the thought process that took me to it.

This solution is working on my computer.
I don't understand why it is not working

why is this not working? gives correct solution to all test cases on my computer

Another unreadable statement. Does anyone else have trouble using backspace in the "comment on solution box"?

This only works if you have the Neural Network Toolbox

Until they are banned like other functions, many people are using these. It is interesting that only a subset of functions work.

I am partial to dist, it's such a useful function...