How to plot a matrix over time on a 2D or 3D graph

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zephyr21 2016-6-21

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https://ww2.mathworks.cn/matlabcentral/answers/291168-how-to-plot-a-matrix-over-time-on-a-2d-or-3d-graph

编辑： alexandre levy 2018-3-27

I have an 11x14 matrix of variables P that change over the course of 60 timesteps. I currently have P_overtime(:,:,n) = P. Where P_overtime(:,:,1) decreases to P_overtime(:,:,2) and continues to decrease until 60. How can I show this progression in a graph of some sort? Maybe some sort of animation? At the very least I'd like to show the first, 15th, 30th, and 60th timestep. Thanks for any help!

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Answer 1

KSSV 2016-6-21

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https://ww2.mathworks.cn/matlabcentral/answers/291168-how-to-plot-a-matrix-over-time-on-a-2d-or-3d-graph#answer_226140

在 MATLAB Online 中打开

So your matrix is of size 11X14X60 (60 being the number of time steps); You may use

for i = 1:60
    surf(yourmatrix(:,:,i))
    drawnow
end

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zephyr21 2016-6-21

Thank you! However, after it drops to a certain value, the y-axis changes itself and continues plotting. This makes it look like my values increase then decrease again. How can I keep the y-axis the same throughout the animation?

alexandre levy 2018-3-27

编辑：alexandre levy 2018-3-27

Hi, Thank you very much for your answer.

I want to plot a matrix dataset of x,y,z over time. x,y,z have no mathematics relation. x, y, z are the coordinates in the space of my points during the period t. I do have more than 500.000 points

Do you have any idea of how can I do that ?

Thank you very much in advance !

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