How to plot multiple figures (.fig) into one figure?

Dear Community member, Im new to MATLAB and in need of your assistant. I have different plots which i saved as figures using saveas function and .fig format. Is it possible to somehow take the figures from each folder and then make one plot? the setup of the figures(standard 2d x-y plot) are exactly the same but each figure contains "circle" points and a curve which is based on a model. but with different values ofcourse. I want to show the differences of these "curve" fits. I have for example: model1.fig model2.fig

one friend suggested "hold on" but im not sure how to since im really really new to MATLAB. your help will be much appreciated. Thank you in advance Best Regards Saad Khan

[AMIT MALGOL]

f=openfig('model1.fig');
H=findobj(f,'Type','line');
x_data=get(H,'xdata');
y_data=get(H,'ydata');

g=openfig('model2.fig');
G=findobj(g,'Type','line');
x1_data=get(G,'xdata');
y1_data=get(G,'ydata');

figure(1)
xlabel('x');
ylabel('y');
plot(x_data,y_data);
hold on
plot(x1_data,y1_data);

Answer 1

[Geoff Hayes]

Saad - you could try opening the figure and then grab the handles for the graphics object (or objects) that were drawn on the axes (of that figure). For example, suppose we do

 x = -2*pi:0.01:2*pi;
 y = sin(x);
 h = plot(x,y);
 saveas(h,'mySinePlot.fig');

So we have drawn the familiar sine curve and then saved the figure to a file. Now, we open the figure as

 close all;  % ensure existing figures are closed
 open mySinePlot.fig;

If we assume that there is just one child object (for the figure) and that it is the axes, then we could do

 hFigAxes = get(gcf,'Children');

We now grab the children for the axes. Given our very simple example, there will be just one child from which we can get the x and y data that we used when calling plot

 hSinePlot = get(hFigAxes,'Children');
 xData = get(hSinePlot,'XData');
 yData = get(hSinePlot,'YData');

If you do the same for the other figure, then you will be able to obtain both sets of x- and y-data of which you can then plot onto the same figure.

Your plots may not be as simple as the above, but start with this code and see what happens. If your axes has more than one child, then loop through all of the children until you find the one that you are looking for (if a plot, then its type is Line).