DisplayEstimatedTim​eOfLoop( tot_toc, curr_ix, tot_iter )

Displays the estimated time to finish a for loop

Gives you a formatted estimated time (HH:MM:SS) to finish your for loop. Simple to use.
USAGE:
% declare tot_toc
tot_toc = 0
for i=init_iter:tot_iter
% before anything, get tic
tic
% perform your computations
...
% at the end, call this function like this:
tot_toc = DisplayEstimatedTimeOfLoop( tot_toc+toc, i, tot_iter-init_iter );
end