How to plot three subplots on the same axis?

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Ammy
Ammy 2021-9-27
评论： Ammy 2021-9-27
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

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采纳的回答

Dave B
Dave B 2021-9-27
编辑：Dave B 2021-9-27
Ran in:
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')

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