How to plot three subplots on the same axis?

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Ammy
Ammy el 27 de Sept. de 2021
Comentada: Ammy el 27 de Sept. de 2021
if true
% figure(1)
x1=subplot(2,1,1);
stairs(DDr.Var1,DDr.Var2);
legend('Station 1 LHS')
ylabel('Cycle time')
title('Station 1 RHS & LHS hourly mean cycle time')
set(gca,'XTickLabel',[]);
ylim([0 105]);
x2=subplot(2,1,2);
stairs(DDr.Var1,DDr.Var3);
ylabel('Cycle time')
legend(' Station 1 RHS')
ylim([0 105]);
p1 = get(x1, 'Position');
p2 = get(x2, 'Position');
p1(2) = p2(2)+p2(4);
set(x1, 'pos', p1);
xlabel('Time')
end
I found the above code for two subplot on the same axis,
I want to plot three subplots on the same x-axis without any gap between them.
I have made the following changes
if true
% figure(1)
x1=subplot(3,1,1);
stairs(DDr.Var1,DDr.Var2);
legend('Station 1 LHS')
ylabel('Cycle time')
title('Station 1 RHS & LHS hourly mean cycle time')
set(gca,'XTickLabel',[]);
ylim([0 105]);
x2=subplot(3,1,2);
stairs(DDr.Var1,DDr.Var3);
ylabel('Cycle time')
legend(' Station 1 RHS')
ylim([0 105]);
x3=subplot(3,1,3);
stairs(DDr.Var1,DDr.Var3);
ylabel('Cycle time')
legend(' Station 1 RHS')
ylim([0 105]);
Now I want to know how to change the below ?
p1 = get(x1, 'Position');
p2 = get(x2, 'Position');
p1(2) = p2(2)+p2(4);
set(x1, 'pos', p1);
xlabel('Time')
end
  2 comentarios
Ammy
Ammy el 27 de Sept. de 2021
No sorry I don't have latest version for that, but thank you very much for the response.

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Respuesta aceptada

Dave B
Dave B el 27 de Sept. de 2021
Editada: Dave B el 27 de Sept. de 2021
There are a few options better than subplot.
  • The easiest thing (as @Mathieu NOE mentions in the comments) is to use stackedplot which was meant for exactly this kind of problem.
  • If you have some plotting requirements that stackedplot can't handle, tiledlayout makes this kind of problem much easier, because you can just set the TileSpacing property as you like.
  • Finally, if you need to keep using subplot (e.g. if you're on an old release) you can just set the middle axes based on the bottom one, and the top based on the middle.
Here are examples of all three:
Option 1: Use stackedplot
x=linspace(0,2*pi,100)';
y1=sin(x);
y2=cos(x);
y3=tan(x);
stackedplot(x,[y1 y2 y3])
Option 2: Use tiledlayout
figure;
t=tiledlayout(3,1,'TileSpacing','none');
nexttile;
plot(x,y1);
xticks([])
nexttile;
plot(x,y2);
xticks([])
nexttile;
plot(x,y3);
linkaxes(t.Children,'x')
Option 3: Keep using subplot:
figure;
ax1=subplot(3,1,1);
plot(x,y1);
xticks([])
ax2=subplot(3,1,2);
plot(x,y2);
xticks([])
ax3=subplot(3,1,3);
plot(x,y3);
ax2.Position(2)=ax3.Position(2)+ax3.Position(4);
ax1.Position(2)=ax2.Position(2)+ax2.Position(4);
linkaxes([ax1 ax2 ax3],'x')
  1 comentario
Ammy
Ammy el 27 de Sept. de 2021
@Dave B thank you very much for such a brief explanation.

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