How can i animate the code below?

t1=0:0.01:1;
i=0;
m1=0;
while(i==0)
    for i=1:99
        y1(i)=1.*t1(i);
    end
    for i= 100:200
        y1(i)=1;
    end
    y=[zeros(1,200+m1) y1 zeros(1,801-m1)];
    %y=y1+y2;
    t2=-2:0.01:10;
    plot(t,y)
    ylim([0 2]);
    xlim([-2 10]);
    m1=m1+200;
    j=input('enter 0 4 times');
end

[Akira Agata]

Could you reshape your code to "easy-to-read" style? Trying copy&past your code to MATLAB, but it does not work.

[Geoff Hayes]

Souvik - what are you trying to animate? When plot is called, you are passing an invalid parameter t (which doesn't exist). Even if I replace it with t1, it is of a different dimension than y. Please clarify what you are trying to do.

Answer 1

[MG Poirot]

If I'm interpreting your question corretly (and fixed your code properly) I faced the same problem years ago: animating plots withing a for/while loop.

Back then I found a solution with two options. The solution is to call Matlab the draw the figure before the next loop, this can be done either by the drawnow command or the pause(s) command, if you would like to lower the drawspeed.

Your script would look like:

t1=0:0.01:1;
i=0;
m1=0;
while(i==0)
    for i=1:99
        y1(i)=1.*t1(i);
    end
    for i= 100:200
        y1(i)=1;
    end
    y=[zeros(1,200+m1) y1 zeros(1,801-m1)];
    %y=y1+y2;
    t2=-2:0.01:10;
    plot(t2,y)
    ylim([0 2]);
    xlim([-2 10]);
    m1=m1+200;
    %drawnow
    pause(0.1)
    i = 0
end

Resulting in the animation of a forward propagating wave. I love to know what you think and solution addresed your question properly.

-mgp