How can I create a plot during an Optimization using Output Function?

I tried plot some Points of my Optimization (I used gamultiobj) using an Output Function. But all Figures appear only when the optimization has finished or I quit the Programm using "ctrl +c".

I use the following OutputFcn:

function [st, opt,optchange] = gamOutput( optionsin,statein,flag)

disp(statein.Score)

disp(statein.Population)

figure
plot(statein.Score(:,1),statein.Population(:,1))

st = statein;
opt = [];
optchange = 0;
end

I know that the function is called because the score and the population are diplayed in the command Window during the Optimization. I just don't know, why the figures are all created at the end of the Optimization.

Answer 1

[Mike Garrity]

My guess is that you need a drawnow at the end to tell the graphics system that it can go ahead and push the graphics out to the screen.