how can i calculate total size of a folder?

i'm reading a folder of images , now i wanna display its total size in my GUI. how can i get total size of the folder that i access?

Answer 1

[Walter Roberson]

Use this Recursive Directory File Exchange contribution, and add up all the bytes fields.

Note: the meaning if bytes on a directory entry would depend upon your operating system.

Answer 2

[Avnet]

This does the trick:

D = dir('**/*.mat'); % descends current folder and its sub-folders
total_bytes = 0;
for ii = 1:length(D)
    total_bytes = total_bytes + D(ii).bytes;
end