How to get ones out of matrix

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Kamil Kacer
Kamil Kacer 2020-12-3
评论： Kamil Kacer 2020-12-3
Hi i have this matrix I want to write an if statement or use a function where i detect if there is any '1' in this sequence ant if it is i want to also give me at which position.

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KSSV
KSSV 2020-12-3
Ran in:
a = [0 1 1 0] ;
idx = find(a==1)
idx = 1×2
2 3
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Rik
Rik 2020-12-3
Ran in:
If you insist on words, you probably need something like this.
Otherwise you can do this:
a = [0 1 1 0] ;
idx = find(a==1);
fprintf('frame %d\n',idx(1))
frame 2
Kamil Kacer
Kamil Kacer 2020-12-3
I works perfectly i just put idx(:) instead of (1) and i get where all the ones are
Thaaaank youu

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