How is this code getting executed?

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Varun Rahul Lale
Varun Rahul Lale 2021-10-1
评论： Walter Roberson 2021-10-1
for i=1 : u
x(:,i) = y(:,ij(i-1))-y(:ij(i-2))
end
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DGM
DGM 2021-10-1
It's unclear what operations you're trying to do. Y is 10x7 and ij is 14x2. You want the result of yi-yj, neither of which are defined. Is this supposed to mean Y*ij(:,1) - Y*ij(:,2)? If so, the array size mismatch means that this won't work either as a matrix multiplication or as an elementwise multiplication. How does the loop example correspond to the problem statement?
Walter Roberson
Walter Roberson 2021-10-1
for i=1 : u
x(:,i) = y(:,ij(i-1))-y(:,ij(i-2))
end
You were missing a comma

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