I want to create several files with the following simulation in decreasing order from 18700 to 15000 but my simulation keeps going off after the first iteration, I don't know whats wrong. I actually did this for the the acending order and it worked.

for wb=18700:50:15000;
    Para(9)= wb; 
    ff= ode5(@this_eq_of_motion,t,Y0,Para); 
    Resp=ff((Tend-50)*1/steptime:end,:);
    save(strcat('NNres_to_WOB_', num2str(wb),'.mat'),'Resp','Para');
    Y0 = [ff(end,1),ff(end,2),ff(end,3),ff(end,4)];
    clear ff Resp
end

[Jan]

Hints:

Y0 = ff(end,1:4);

Omit the "clear ff Resp", because this is not useful in Matlab but wastes time only.

Answer 1

[Adam]

You have to use

wb=18700:-50:15000

to do a decrementing loop else it just tries to increment by 50, finds it is beyond the end point of the loop and stops immediately.