Hi everyone, I have been trying to debug this for loop as it always retain the last value of the array even if none of the conditions meet for every element. For instance, using readings = [1 20 55 90], it will print that reading(4)>100.

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Randall Ang 2020-5-25

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评论： Alan Stevens 2020-5-25

for ii = 1:length(readings)
    if readings(ii) > 100 
        break;
    end
end
fprintf('First reading above 100 is at index %d.\n', ii);

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Alan Stevens 2020-5-25

编辑：Alan Stevens 2020-5-25

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Alan Stevens 2020-5-25

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Try:
ix = 0;
for ii = 1:length(readings)
   
    if readings(ii) > 100
        ix = ii;
        break;
    end
    
end
fprintf('First reading above 100 is at index %d.\n', ix);

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Randall Ang 2020-5-25

ahh, it works, thanks. very smart! so we initialise another variable and print it instead, since the for loops will cause ii to retain the last element if it does not break the if statement right?