progress_bar

Displays the progress of a loop on the command window

Displays the progress of the loop that it was called in
NOTE: tic needs to be called at the beginning of the loop
NOTE: progress_bar() needs to be called at the end of the loop
INPUTS:
iter: the loop index number
iter_total: the total # of iterations in the loop

OUTPUTS:
the command window will display something similar to
>>>====== 31% complete 15/47 20 secs left

USAGE EXAMPLE:
len = 47;
for i = 1:len
tic;
A = rand(500);
a = eigs(A);
progress_bar(i, len);
end

Author: Varsha Shankar
04 Dec 2013