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waitbar with time estimation

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4.9 | 9 ratings Rate this file 77 Downloads (last 30 days) File Size: 3.33 KB File ID: #22161
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waitbar with time estimation

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19 Nov 2008 (Updated )

Estimated remaining, elapsed time, and percentage complete.

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Description

This version of waitbar is compatible with MATLAB's version. Thus, doesn't require any modification of existing functions using the waitbar. However, the property settings include with MATLAB's version will not be recognized.

This program is a heavily modified version of timebar.m by Chad English.

MATLAB release MATLAB 7.5 (R2007b)
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Comments and Ratings (13)
30 Jun 2014 Ivan  
19 Dec 2013 Lukas Lansky

Works nicely.

24 Jun 2013 Preetham Aghalaya Manjunatha

Awesome work! Great share, keep that up.

12 Feb 2013 Fran├žois Beauducel

Great job. Thanks.
A little improvement for compatibility: in Matlab's original waitbar, the 'message' string is optional for the first call:
h=waitbar(0);
With your function it makes an error.

26 Jan 2010 Rob Campbell

Like the Mathworks waitbar but better! Very useful for loops in which each iteration takes a long time. There are solutions for loops with quick iterations so the above critique is somewhat harsh.

22 Jun 2009 Philipp Pruefer

Great tool! The only prob I had was dealing with zero progress. My solution is:

% 2.2 - Calculate the estimated time remaining
e_mes = datestr(elap/86400,'HH:MM:SS');
if progress~=0
sec_remain = elap*(1/progress-1);
r_mes = datestr(sec_remain/86400,'HH:MM:SS');
else
r_mes = ('--:--:--');
end

Not sure why I had the prob only after a fresh start of Matlab though...

07 Apr 2009 csb

try this to speed up things

% pause(10e-120) % Needed for window to appear (do not know why)
drawnow

04 Mar 2009 skouliki katelouzos

Ross, i don't want to argue much on this, i see your point.
I mean you have a point if the computation is heavy due to what's inside the loop, but not when is due to the high number of iterations.

02 Mar 2009 Ross Hatton

In response to the time comparison:

Updating the graphical progress display is certainly going to take longer than an addition operation like k=k+1, but will be negligible when compared to a computationally heavy process, and can be read from across the room.

28 Feb 2009 skouliki katelouzos

ok, cool looking, but this whole waitbar thing is not very useful.
the point is that updating graphics in Matlab is very time consuming.look at this:

h = waitbar(0,'Please wait...');
k=0;
tic
for i=1:1000,
k=k+1;
waitbar(i/1000);
end
toc
k=0;
tic
for i=1:1000,
k=k+1;
end
toc
Elapsed time is 15.628354 seconds.
Elapsed time is 0.003811 seconds.

If you have a loop that takes enough time to make reasonable the use of a timebar, then using the timebar will make the computation 4000 times slower.
Updating only test is much more efficient, so i like going for a running percentage thing.
The timebar is good looking though

26 Feb 2009 Arturo Serrano  
24 Feb 2009 William Henry Brave

Great contribution, works seamlessly without any modification of the code, thanks...

08 Feb 2009 Anthony Kendall

Very nice, though there is one bug that shows up in the provided example: the message is overwritten with the graphics handle

A fix I used is:
line 45: h = message;
becomes
line 45: h = message; message = [];

And, in the subfunction updatewaitbar:
line 143: set(hh.message,'String',message);
becomes
line 145: if ~isempty(message),set(hh.message,'String',message);end

Otherwise, it works great and is a complete drop-in replacement for waitbar. Thanks!

Updates
12 Dec 2008

Fixed problem of comparability with existing MATLAB's waitbar.m.

26 Feb 2009

I believe I fixed the bug mentioned in the comments, please contact me if any problems are encountered.

09 Jun 2009

As suggested in the comment, I changed the pause(10e-120) to drawnow. Thanks for that tip, there is always something to learn.

23 Jan 2010

I fixed a problem with updating messages.

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