I want to draw two figure in same figure window for comparison purpose.

Question

chhatra pal 2021-7-18

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回答： Yazan 2021-7-18

Hi

I want to draw two figure in same figure window for comparison purpose of two different numerical scheme.

The problem is that I can execute code for one scheme at a time in the same script file Graphs are drawn Then I want draw graph in the same figure window when I execute code for next scheme in the same script file.

Please suggest me some way for that.

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KSSV 2021-7-18

Save the data into array and plot at the end.

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Answer 1

Yazan 2021-7-18

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See the example below if you want to draw data on the same axes:

% first signal
t = 0:127;
x = cos(2*pi*0.01*t);
% create a figure and axes
% hold the axes
f = figure; ax = axes(f); hold(ax, 'on')
plot(ax, x), grid(ax, 'minor')
% second signal
x = cos(2*pi*0.05*t); 
% plot on the same axes
plot(ax, x)
legend(ax, {'Signal 1', 'Signal 2'})

If you want to draw on different axes, then use subplot:

t = 0:127;
x = cos(2*pi*0.01*t);
% first set of axes
subplot(1,2,1);
plot(x), grid('minor');
x = cos(2*pi*0.05*t); 
% second set of axes
subplot(1,2,2);
plot(x), grid('minor');