MATLAB: How can i draw two animated plots on each subplots at the same time

addpointanimatedlinesubplot

Hi everyone! Now, i want to draw two animated plots on each subplots at the same time. You can see my code below. But, when i use this code, of course, Matlab will return two subplots and it will draw "k" line after drew "r" line. So, how can i do to draw two animated plots (in this case is two lines) at the same time? Thank you so much. My code:
x1=linspace(0,20,201);
y1=sin(x1);
x2=linspace(0,20,201);
y2=cos(x2);
sub1=subplot(2,1,1);
hold on
axis([0 21 -1.1 1.1]); 
ani1=animatedline('Color','r');
for i=1:length(x1)
    addpoints(ani1,x1(i),y1(i));
    drawnow
    pause(0.01);
end
subplot(2,1,2)
hold on
axis([0 21 -1.1 1.1]); 
ani2=animatedline('Color','k');
for j=1:length(x1)
    addpoints(ani2,x1(j),y1(j))
    drawnow
    pause(0.01);
end

Best Answer

Merge the for-loops! This works here because x1,y1, x2, and y2 are all the same length. There is also no need for hold on)
x1=linspace(0,20,201);
y1=sin(x1);
x2=linspace(0,20,201);
y2=cos(x2);
sub1=subplot(2,1,1);
axis([0 21 -1.1 1.1]); 
ani1=animatedline('Color','r');
subplot(2,1,2)
axis([0 21 -1.1 1.1]); 
ani2=animatedline('Color','k');
for k=1:length(x1)
    addpoints(ani1,x1(k),y1(k)) ;
    addpoints(ani2,x2(k),y2(k)) ;% I assume you meant to plot (x2,y2)
    drawnow
    pause(0.01);
end
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