how do we get last two number from the string?

I have a struct as 'r_m3_1.00','r_m3_1.05'....which i created using fullfile command for the folders. Now I want to get only last 4 digit of each folder name (i.e 1.00, 1.05....) in a struct and store in a new matrix form. How do I get only last 4 digit of each folder of the struct below?

Answer 1

[Walter Roberson]

last4 = cellfun(@(S) S(end-3:end), {sublist.name}, 'Uniform', 0);

[sam moor]

what does this S represent?

[Walter Roberson]

Same thing as it would mean in the below:

last4 = cellfun(@last4char, {sublist.name}, 'Uniform', 0);

function r = last4char(S)
  R = S(end-3:end);