Transferring 4 already plotted figures into one with subplots

Hello community, I have currently from my code 4 printed figures: figure(101); figure(102), figure(103) & figure(104) (these also have subplots (2x2) of their own).

I would like to like to transfer them to be in one figure all together (a figure with 2x2 subplots), subplot(2,2,1) being figure(101), subplot(2,2,2) being figure(102), etc...

Any idea how I can do this in the best way possible?

%Example for the 4 figures:
colors = ['b','r','g','k'];

for j=1:4
figure(100+j);
    for i = 1:4
        subplot(2,2,i); hold on;
        title(strcat('Figure: ',num2str(j),'-',num2str(i)))
        plot((1:10).^i,'Color',colors(j));
    end
end

Answer 1

[per isakson]

AFAIK: Matlab doesn't provide a specific tool to copy the content of separate figures to subplots of one figure. However, there might be something useful in The File Exchange (FEX).

Search the FEX: tag:subplot figure copy. The second hit is MontageFigures by Nick Sinclair, which I downloaded and tested:

Create four separate figures

colors = ['b','r','g','k'];
for jj=1:4
figure(100+jj);
    for ii = 1:4
        plot((1:10).^ii,'Color',colors(jj));
        title( sprintf( 'Figure: %d - %d', jj, ii ) )
    end
end

Copy the content of the four figures to one new figure

montagefigures( [101,102,103,104],2,2)

Worked without any problems.