I have an example of how to find the difference of elements of a matrix starting on the 2nd iteration which would correlate with the 2nd row and j=1 is corresponding to the column. So This example Shows the difference of 2nd row - 1st row on the first column all the way to the last column.
Then next iteration will do 3rd row - 2nd row on the first column all the way to the last column and replace all those difference into the 'u' matrix.
This example is successful with the first column of 'u' being zeros and the rest being all different non-zero values.
u(j,:,i) = (a(j,:,i) - a(j,:,i-1));
Now This is the problem that is similar to the example but, I cant seem to figure out why my 'u' is all zeros still.
All LatPos positions in the matrix for the first 15 rows and all columns are all different values. So 'u' should be a non-zero scalar at each position
function [LatPos, u] = fcn(detections)
LatPos = zeros(numel(detections.Detections),numel(detections.Detections(1).Time))
u = zeros(numel(detections.Detections),numel(detections.Detections(1).Time))
for i = 2:numel(u(1,:,:))
u(j,:,i) = LatPos(j,:,i) - LatPos(j,:,i-1)
Could the issue be in the initialization of my matrices for both 'u' or 'LatPos'?
