Create subplots dynamically in Matlab

Question

Is there a way to create subplots dynamically in matlab ?

I have a variable X that determines the number of graphs to be plotted, i was wondering if there was a way to dynamically create these graphs since X will vary according to a certain scenario

I currently allocate the number of subplots beforehand like so:

figure

ax1 = subplot(3,1,1); 
ax2 = subplot(3,1,2); 
ax3 = subplot(3,1,3); 

plot(ax1,ins,state_vec(:,1),'b',x,100,'r','LineWidth',2)
plot(ax2,ins,state_vec(:,2),'b',x,100,'r','LineWidth',2)
plot(ax3,ins,state_vec(:,3),'b',x,100,'r','LineWidth',2)

Felipe Gerard · Accepted Answer · 2015-07-16 19:07:08Z

1

If you only want them in one column (just like you have them now), a simple for loop should do it:

figure

for i = 1:X
    axi = subplot(X,1,i)
    plot(axi,ins,state_vec(:,i),'b',x,100,'r','LineWidth',2)
end

If you want a grid, you'll have to be cleverer than that, but you can do it with two for loops. If you can, try R + ggplot2! :)

answered Jul 16, 2015 at 19:07

Felipe Gerard

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X Zhang · Accepted Answer · 2022-05-18 00:24:27Z

1

If anyone is still asking this question, MATLAB since R2019b now recommends using the tiledlayout and nexttile function pair to dynamically arrange multiple plots inside one figure, e.g.

tiledlayout('flow')
nexttile
plot(x,y1)
nexttile
plot(x,y2)

answered May 18, 2022 at 0:24

X Zhang

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Aaron Earle-Richardson · Accepted Answer · 2022-05-11 18:02:08Z

0

If you want it to be a square, you can do:

figure

sqSize = ceil(sqrt(X));
for i=1:X
    subplot(sqSize,sqSize,i);
    <plot stuff>
end

answered May 11, 2022 at 18:02

Aaron Earle-Richardson

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