Drawing figure in a for loop

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S. David
S. David on 21 Jun 2014
Commented: Star Strider on 22 Jun 2014
Hello all,
I have a for loop and I want to see the progress of the figure as the loop goes. Basically the code is like this:
SNRdB=0:20;
nErr=zeros(length(SNRdB),1);
for ii=1:length(SNRdB)
...
nErr(ii)=...
figure(1)
semilogy(SNRdB,nErr)
end
However, when I write it this way the figure is halted during the next loop and I cannot see it. How can I see the figure freely while the loop is running?
Thanks
  7 Comments
Geoff Hayes
Geoff Hayes on 21 Jun 2014
Right - and S. is minimizing it because he has other stuff to do and doesn't want to see that figure or have it occupy area on his screen. Only at some point later does S. want to review the figure to check the progress by "retrieving the figure frame from the task bar".

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Answers (2)

Star Strider
Star Strider on 21 Jun 2014
The drawnow function and its friends will probably do what you want. The Example is fun to watch!
  2 Comments
Star Strider
Star Strider on 21 Jun 2014
Edited: Star Strider on 21 Jun 2014
Nothing in the UI functions offers a solution, unfortunately.
My only suggestion is to not minimise it to the taskbar but position the figure off to the side, and then click on it when you want to see it. This is my usual strategy, but then I don’t know what’s on your desktop or how it’s organised.
You can also bring it to the foreground by clicking on it on the toolbar even when it’s not minimised. If you don’t minimise it, you may avoid the problem entirely.

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Image Analyst
Image Analyst on 21 Jun 2014
Why are you calling figure(1) at all? Just get rid of it. You can use maxfig (in MATLAB Central) to get the window state and if it's not minimized, call drawnow after you call plot.
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