# Find index of a structure with multiple conditions of multiple fields

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Amaury on 7 Oct 2022
Commented: Amaury on 7 Oct 2022
Hi! I have a structure array with some fields and would love to know how to find the index (the line) of that structure that match conditions from the differents fields of the same structure array.
To explain, let say I have this structure :
S.liste.a = linspace(1,30,5)
S.liste.b = linspace(1,60,5)
S.liste.c = linspace(1,80,5)
I want to know the index of S.liste that fits conditions like :
S.liste.a < 10 && S.liste.b < 50 && S.liste.c < 60
I know this conditions have no sens with this data but it's just an example.
Can I do this without using loops?
Thanks a lot!! :)
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Amaury on 7 Oct 2022
Wow thank you for your quick reply! It was much easier than I thought ahah
I think I was wrong with the sort of structure, finally I get what I needed with your code and using "[ ]" because my structure was divided in fields...

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### Accepted Answer

Stephen23 on 7 Oct 2022
Edited: Stephen23 on 7 Oct 2022
S.liste.a = linspace(1,30,5);
S.liste.b = linspace(1,60,5);
S.liste.c = linspace(1,80,5);
X = S.liste.a<10 & S.liste.b<50 & S.liste.c<60
X = 1×5 logical array
1 1 0 0 0
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