reference a structure array

Hello

My question is simple.

can I reference a structure array; i.e if I have this code

   s = struct('f1', [1 2; 3 4], 'f2', [5 6; 7 8]);

if I have for loop to find do some operation on the matrices stored in f1 & f2 like the mean for example. how can I index f1 & f2 in structure s so each time I can call one in the loop??

Answer 1

[Laura Proctor]

You can use the fieldnames function and then use parentheses around the fieldname when called with a variable, see the code below:

s = struct('f1', [1 2; 3 4], 'f2', [5 6; 7 8]);
fn = fieldnames(s)
for idx = 1:length(fn)
  mv(idx) = mean(s.(fn{idx})(:));
end

[Duaa]

Thank you for your help