Plot displacement v.s time of an area from a video

Hello, please help! I don't know how to program this.

I am trying to plot the displacement of an area (or a point) versus time of from a video. How do I do that? The object moves in both X-direction and Y-direction. So I need two graphs, one is the displacement in the X-direction, and one is in the y-direction.

Thank you very much ! F.

Answer 1

[Muhammad Usman Saleem]

to plot two variable (must be of same length) as x and y

use

plot(x,y);

[fei duan]

that doesn't help much.

[Muhammad Usman Saleem]

What you want then?