array of plots in simulink

Hello,

I wrote the following embedded matlab function to plot an array of scopes:

function fcn(t,u)
% This block supports an embeddable subset of the MATLAB language.
% See the help menu for details.

figure(1)
subplot(331);
h=findobj(gca,'Type','line');
if isempty(h);
    plot(t,u)
else
    set(h,'XData',[get(h,'XData') t],'YData',[get(h,'YData') u]);
    drawnow
end

I get the following error:

Embedded MATLAB Interface Error: Size mismatch for MATLAB expression 'get'. Expected = 1x1 Actual = 1x2

Block Embedded MATLAB Function (#44)
While executing: none.

Does anyone know what goes wrong and how i can solve it?

thanks,

edit: seems that I'm not allowed to use the get command. is there another way to get the X and Y data?

edit2: I solved the problem using the XY graph from the submenu sinks. --> drop in the simulink model --> look under mask --> open the sfun dialog box --> edit the sfun --> search in the sfun for the word axes, and replace that word by subplot(331). done

[Paulo Silva]

Thanks for writing your solution, someone else might have a similar problem, +1 vote

[Fangjun Jiang]

I am curious about the use case. It sounds odd to me to use the above code to generate the plot in Simulink. Why can't you use the Scope block?

[Wesley Ooms]

@Fangjun Jiang. Sorry for the late reply.

The use case is that 9 figures in a column are not readable, while in a 3x3 matrix, they are.