subplot command does not work

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Hi, I am very new to MATLAB and I am stuck on this one problem. I cannot use subplot code. Here is the ss of the error code and the source code

Accepted Answer

Dave B
Dave B on 25 Oct 2021
Edited: Dave B on 25 Oct 2021
I think you wanted commas and not colons:
subplot(2,1,1)
plot(rand(1,10),'r')
title('red')
subplot(2,1,2)
plot(rand(1,10),'b')
title('infrared')
But if you're using a recent version of MATLAB (and you noted 2021b in the question), do yourself a favor and use tiledlayout/nexttile instead of subplot:
figure
t=tiledlayout(2,1);
nexttile
plot(rand(1,10),'r')
title('red')
nexttile
plot(rand(1,10),'b')
title('infrared')

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