How do you extract diagonal elements of a cell array?

[9;9;9;9;1;1;2;2] [9;2;1;1;2;1;9;9] [9;2;1;1;2;1;9;9]

[9;9;9;9;1;1;2;2] [9;2;1;1;2;1;9;9] [9;2;1;1;2;1;9;9]

0 [2;1;9;2;9;9;9;9] [2;1;9;2;9;9;9;9]

Hi, need help:

i have a cell array like this one, and i need to extract only the elements on the diagonal how can i do?

Please advise Thanks!

Answer 1

[Max Heimann]

Assuming your matrix "data" is equal in x and y dimension:

[y,x] = size(data)
selected_values = data([1:y+1:x*y])

Alternatively you could try creating an index matrix with the "eye" command and then use that to select your values from the matrix.

[LL]

Super it works correctly!!

Thank you ;)