how to split the data in for loop?

inter_point = [];
idx = [];
tic
parfor k = 1:length(x1)   
    for i = 1:length(Arr_1516)
         for j = 1:length(Arr_1516(i).Longitude)-1      
              p1 = [x1(k),y1(k)];
              p2= [x2(k),y2(k)];
    L1 = [Arr_1516(i).Longitude(j), Arr_1516(i).Longitude(j+1);
        Arr_1516(i).Latitude(j), Arr_1516(i).Latitude(j+1)];  % Line 1 : Mean Trajectory 
    L2=[p1(1,1),p2(1,1);p1(1,2),p2(1,2)]; % Line 2 : Line
    inter = InterX(L2,L1);
        if isempty(inter)
          idx=[idx;i];
          continue   
        end % if 
           inter = [inter(1,1),inter(2,1)];
    inter_point = [inter_point;inter];
         end % j
end % k
end % i
toc

I want to split the data when k is moving to next number.

I tried with this code to inster NaN NaN. but it didnt work at all

inter_point = [inter_point;inter;NaN NaN];

Answer 1

[Alex Hanes]

It looks like your issue is because your parfor loop violates the following static condition:

Required (static): If you use a nested for-loop to index into a sliced array, you cannot use that array elsewhere in the parfor-loop.

You can see the requirements on this page: https://www.mathworks.com/help/parallel-computing/nested-parfor-loops-and-for-loops.html