Return a figures from different functions and subplot them

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Tanvir Hossain
Tanvir Hossain 2020-8-13
评论： Walter Roberson 2020-8-16
I have three functions, these function generates 3 different plots. Now I want to subplot them from my main script.
How can I do it?

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回答（2 个）

David Hill
David Hill 2020-8-13
If your three functions are a, b, c; then your script could be:
subplot(3,1,1);
a;
subplot(3,1,2);
b;
subplot(3,1,3);
c;
  1 个评论
Tanvir Hossain
Tanvir Hossain 2020-8-13
I have tried it. but didn't work. here is my function formate:
NB: I want to plot the figure for two time. one is from function itself. Another is from main script with subplot.
function [y, h1] = func1(x)
y = sin(x);
figure();
h1 = plot(x, y)
end

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Walter Roberson
Walter Roberson 2020-8-13
Your function returns the line handes. If you record them, then you can take each handle and set its Parent property to be the axes that you want the line to appear in. For example,
[y1, h1] = func1(x1);
[y2, h2] = func2(x2);
ax1 = h1.Parent;
ax2 = h2.Parent;
fig1 = ax1.Parent;
fig2 = ax2.Parent;
spax1 = subplot(1,2,1);
h1.Parent = spax1;
spax2 = subplot(1,2,2);
h2.Parent = spax2;
delete(fig1);
delete(fig2);
  2 个评论
Tanvir Hossain
Tanvir Hossain 2020-8-16
I tried your code. but it showing the following error.
>> ax1 = h_c.Parent;
>> ax2 = h_r.Parent;
>> fig1 = ax1.Parent;
>> fig2 = ax2.Parent;
>> spax1 = subplot(1,2,1);
>> h_c.Parent = spax1;
Axes cannot be a parent.
Walter Roberson
Walter Roberson 2020-8-16
What is h_c and h_r ? And are you still using the code
function [y, h1] = func1(x)
y = sin(x);
figure();
h1 = plot(x, y)
end
That will return a Chart Line handle in the second output. If h_c is a chart line object, then it should be fine to set spax1 as its parent.

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