How to get ones out of matrix

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.

Answer 1

[KSSV]

a = [0 1 1 0] ;
idx = find(a==1)

idx = 1×2

2 3

[Kamil Kacer]

Thanks so much but now i want to do

if first element of idx is equal to 1 display 'first frame'

if first element of idx is equal to 2 display 'second frame'

and so on for all the frames and all the collumns is there any for loop

[Rik]

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]

I works perfectly i just put idx(:) instead of (1) and i get where all the ones are

Thaaaank youu