As per my understanding you want to write a code such that a for loop for array ‘v’ goes in forward direction while another array L goes in the reverse direction to do some functions for a particular L, the code below demonstrates it.
V = 1:12;
L = [3 5 8 10];
j = length(L)
for i = V
switch j
case 1
disp('do something 1')
case 2
disp('do something 2')
end
j = j-1;
end
