How to stop finding a value once it has been attained? (Find function inside a loop)
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Hello, I am finding a first nonzero value from the array within the while loop. However, the efficiency of my code got significantly lower as I tried to find a value from the entire array every time the code loops. Is there a way to stop finding a value once it has been found? Below is the excerpt of my code that is within the while loop.
ind_e = find(current_e(2,:),1,'first');
if exist('ind_e','var')
if k > ind_e
sur_current_e(1,k) = current_e(1,k-ind_e) - current_e(2,k);
end
end
Thank you very much.
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回答(2 个)
Brendan Collins
2019-8-8
SungJun,
You could try something like this. Set I to 0 outside of the loop somewhere than give it a shot.
ind_e = find(current_e(2,:),1,'first');
if I == 0
if exist('ind_e','var')
if k > ind_e
sur_current_e(1,k) = current_e(1,k-ind_e) - current_e(2,k);
I = 1;
end
end
end
This will check the variable I before running back through the loop for the rest of your while loop's iterations, but because you already found the number you want, I has been changed from 0 to 1, and the nested if will not run.
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