Plotting using subplot with different x-axis for each plot

Question

I am trying to plot figure with three plots inside it using subplot. The y-axis for all three plots is same from -1 to 1 while the x-axis is 2.5, 5, and 10 Respectively. The problem that is for all three plots the x-axis looks similar for all of them. I tried to use axis square but it changed plots to a square. I want the first plot to start from the left and end at a point while the second one start from the left and end at a point where it is a double distance of x-axis of the first plot. The third plot must start from the left and end at the point where the x-axis is thripple of the x-axis of the first plot. Is there any way to do that?

This is an example with an empty plot just to show how I want my figure to look like.

I used below code but unfortunately it is not working correctly

figure
subplot (3,1,1);
xlabel('x cm')                                              
ylabel('y cm')                                          
grid on
set(gca, 'XTick', 0:0.5:2.5)
set(gca, 'YTick', -1:1:1)
xlim([0 2.5]);
ylim([-1 1]);
% axis square
subplot (3,1,2);
xlabel('x cm')                                              
ylabel('y cm')                                          
grid on
set(gca, 'XTick', 0:1:5)
set(gca, 'YTick', -1:1:1)
xlim([0 5]);
ylim([-1 1]);
% axis square
subplot (3,1,3);
xlabel('x cm')                                              
ylabel('y cm')                                          
grid on
set(gca, 'XTick', 0:2:10)
set(gca, 'YTick', -1:1:1)
xlim([0 10]);
ylim([-1 1]);
% axis square

In subplot's documentation they explain this

sco1
– sco1

2016-05-26 18:16:24 +00:00
Commented May 26, 2016 at 18:16 — sco1
– sco1, Commented May 26, 2016 at 18:16

Ben · Accepted Answer · 2016-05-26 17:09:27Z

5

You can use the Position property of axes (here each of your subplot) and customize them as you wish, using the nomenclature

[l b w h]

where:

l: left b: bottom
w: width h: height

For example assign a handle to each subplot:

h(1) = subplot(3,1,1)
h(2) = subplot(3,1,2)
h(3) = subplot(3,1,3)

and change their position (here in normalized units):

set(h(1),'Position',[.1 .75 .2 .2])
set(h(2),'Position',[.1 .45 .5 .2])
set(h(3),'Position',[.1 .15 .8 .2])

you can also do it in one go as follows:

h(1) = subplot(3,1,1,'Position',[.1 .75 .2 .2])

etc.

Example output:

answered May 26, 2016 at 17:09

Ben

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1 Comment

sco1 Over a year ago

Though it probably won't make any measurable difference performance-wise, if you're passing the 'Position' value explicitly anyway there isn't really any need to even use subplot over axes.

Sardar Usama · Accepted Answer · 2016-05-26 17:20:02Z

You can use your same code with a slight modification in the subplot command. Try the following:

figure
subplot (3,3,1);
xlabel('x cm')                                              
ylabel('y cm')                                          
grid on
set(gca, 'XTick', 0:0.5:2.5)
set(gca, 'YTick', -1:1:1)
xlim([0 2.5]);
ylim([-1 1]);

subplot (3,3,4:5);
xlabel('x cm')                                              
ylabel('y cm')                                          
grid on
set(gca, 'XTick', 0:1:5)
set(gca, 'YTick', -1:1:1)
xlim([0 5]);
ylim([-1 1]);

subplot (3,3,7:9);
xlabel('x cm')                                              
ylabel('y cm')                                          
grid on
set(gca, 'XTick', 0:2:10)
set(gca, 'YTick', -1:1:1)
xlim([0 10]);
ylim([-1 1]);

It'll give this output:

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