plotting multiple plots in multiple figures inside a for loop

Hi, I am trying to plot multiple plots using a for loop. we have 24 plots and I would like to divide them such that I would put 8 plots in each firgure, where each figure will have 4 columns and 2 rows.

I have used

tiledlayout(6,4)

to plot all of them in one figure but I am kinda stuck at how to seperate them into multiple figures.

If anyone can help. Thanks a lot in advanced.

[Dyuman Joshi]

The logistics of what you want to do aren't clear to me.

Do you want to have 24 figures, with each figure having 8 plots stored in a 2x4 format?

Answer 1

[Pooja Kumari]

Dear Salma,

I understand that you are facing issue with ‘tiledlayout’ function while plotting multiple graphs in multiple figures using a ‘for’ loop. You want to plot 24 plots having 8 plots in each figure, where each figure will have 4 columns and 2 rows.

For your reference, I am providing a sample solution:

[X,Y,Z] = peaks(20);

% Define the number of plots and the desired layout
numPlots = 24;
plotsPerFigure = 8;
numFigures = ceil(numPlots / plotsPerFigure);

% Loop over the number of figures
for Index = 1:numFigures

    figure(Index); % We have 24 plot and each figure will have 8 plot so there are total 3 plots
    
    % Create a new tiledlayout for each figure
    t = tiledlayout(2, 4);  
    
    % Loop over the plots in the current figure
    for plotIndex = 1:plotsPerFigure
        % Calculate the plot index within the current figure
        subplotIndex = (Index - 1) * plotsPerFigure + plotIndex;
        
        % Select the appropriate tiledlayout for the current figure
        if Index == 1
            t1 = t;
        elseif Index == 2
            t2 = t;
        elseif Index == 3
            t3 = t;
        end
        
        % Select the appropriate figure and tiledlayout for the current plotIndex
        if subplotIndex <= 8
            figure(1);
            t = t1;   
        elseif subplotIndex <= 16
            figure(2);
            t = t2;
        else
            figure(3);
            t = t3;
        end
        
        nexttile;
        plot3(X, Y, Z);
        title(sprintf('Plot %d', subplotIndex));
    end
end

Please refer to the below documentation for more information on tiled layout:

https://in.mathworks.com/help/matlab/ref/tiledlayout.html

I hope this helps!

Regards,

Pooja Kumari

[Salma fathi]

Thank you for your reply, however, I am having the issue that the code will plot the same excat plot in all the three figures. My code looks something like the following:

for 
    for 
        for 
            for 
                if()
                   plot()
                else
                   continue;
                end
            end
        end
    end
end

And following to what you suggested I putted all the for loop that I have inside the two for loops of yours so it will look like the follwing:

[X,Y,Z] = peaks(20);

% Define the number of plots and the desired layout
numPlots = 24;
plotsPerFigure = 8;
numFigures = ceil(numPlots / plotsPerFigure);

% Loop over the number of figures
for Index = 1:numFigures

    figure(Index); % We have 24 plot and each figure will have 8 plot so there are total 3 plots
    
    % Create a new tiledlayout for each figure
    t = tiledlayout(2, 4);  
    
    % Loop over the plots in the current figure
    for plotIndex = 1:plotsPerFigure
        % Calculate the plot index within the current figure
        subplotIndex = (Index - 1) * plotsPerFigure + plotIndex;
        
        % Select the appropriate tiledlayout for the current figure
        if Index == 1
            t1 = t;
        elseif Index == 2
            t2 = t;
        elseif Index == 3
            t3 = t;
        end
        
        % Select the appropriate figure and tiledlayout for the current plotIndex
        if subplotIndex <= 8
            figure(1);
            t = t1;   
        elseif subplotIndex <= 16
            figure(2);
            t = t2;
        else
            figure(3);
            t = t3;
        end
        
        nexttile;
        title(sprintf('Plot %d', subplotIndex));
              for 
                for 
                    for 
                        for 
                            if()
                               plot()
                            else
                               continue;
                            end
                        end
                    end
                end
            end
    end
end

I think I am doing something wrog some where but I can't seem to find the error.

[Pooja Kumari]

Dear Salma,

You are using the nested for loop code in a wrong way.

for 
    for 
        for 
            for 
                if()
                   for Index = 1: numFigures
                   % Here the Code for 3 figure and 24 plots will come
                   nexttile;
                   
                   plot() 
                else
                   continue;
                end
            end
        end
    end
end

By placing the nested for loops within your existing code, the plotting code will execute for each combination of loop variables. Figures and plots will be created based on the conditions you have specified.

Answer 2

[Voss]

nPlots = 24;
plotLayout = [2 4];

nPlotsPerFigure = prod(plotLayout);
nFigures = ceil(nPlots/nPlotsPerFigure);
for ii = 1:nFigures
    figure
    tl = tiledlayout(plotLayout(1),plotLayout(2));
    tl.Title.String = sprintf('Figure %d',ii);
    for jj = 1:nPlotsPerFigure
        nexttile();
        plot(rand(1,10))
        title(sprintf('Plot %d',(ii-1)*nPlotsPerFigure+jj));
    end
end