How to make an array which plots certain points if another column has a certain value?

Question

Sterre Triezenberg 2019-5-27

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/464196-how-to-make-an-array-which-plots-certain-points-if-another-column-has-a-certain-value

关闭： MATLAB Answer Bot 2021-8-20

Hey,

I have two arrays in which the velocity and the corresponding position of a point are noted. If the velocity is zero, the position of that point has to be plotted. If the velocity is not zero, the position of that point should not be plotted.

Does anybody know how to do this?

Thanks!

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再回答此问题。

Answer 1

dpb 2019-5-27

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/464196-how-to-make-an-array-which-plots-certain-points-if-another-column-has-a-certain-value#answer_376769

在 MATLAB Online 中打开

"Logical addressing"...

isv=(v~=0);           % the logical addressing vector for v
plot(p(isv))          % plot the points (vs ordinal number)
plot(v(isv),p(isv))   % plot the points (vs velocity at point)