Why does my for loop cause MATLAB to not stop running?

Question

Goncalo Costa 2022-1-26

0
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https://ww2.mathworks.cn/matlabcentral/answers/1636555-why-does-my-for-loop-cause-matlab-to-not-stop-running

评论： Matt J 2022-1-26

The code I am writing has as its purpose to analyse some data and plot it accordingly. My data consists of a series of consecutive measurements but every now and then there is a malfunction in the physical system that causes a measurement to be wrong (this event is not regular but purely aleatory).

I am able to find which measurement is wrong before plotting them, and therefore I am trying to elimiate such measurements, but sometimes there is no wrong measurements.

I am trying to put 3 plots together, 2 with errors at 83 and 5, and one without errors (characterised as 0). I wrote the following for loop with if statements:

sample = [name1, name2, name3];
num = [83, 5, 0];
for x = 1: length(sample)
    if num(x) ~= 0
        for i = 1:(num(x)-1)
            a(i)=sample(x).impulse_P2P(i);
        end
        for i=(num(x)+1):length(sample(x).impulse_P2P)
            a(i-1)=sample(x).impulse_P2P(i);
        end
        sample(x).impulse_P2P=a;
    elseif num(x) == 0
        for i = 1:length(sample(x).impulse_P2P)
            a(i)=sample(x).impulse_P2P(i);
        end
        sample(x).impulse_P2P=a;
    end
    

But for some reason when I run this bit of code, it never stops running, I think it might be stuck in a loop or something like that but I don't know why.

Any help would be greatly appreciated.