Ploting vector data in 2D or 3D

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josef vahab 2016-10-4

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https://ww2.mathworks.cn/matlabcentral/answers/305751-ploting-vector-data-in-2d-or-3d

评论： josef vahab 2016-10-4

Hello everybody, I have three vectors in MATLAB. The first vectors is x-axis values like X= [ 1 2 3 5....], the second vector is y-axis values and the same size of x, like y=[1 5 4 8 9 ...] and the third vector is my data at each (x,y) point with the same size of X or Y vector like data=[ 2 5 6 1 ...]. Thus, for example, data(n) corresponds to x(n) and y(n). My question is how can I plot my data vector at x and y points? I prefer to see the result in color format (similar to what imagesc gives).

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Joe Yeh 2016-10-4

Have you read Quiver plot documentation ?

josef vahab 2016-10-4

Thanks for ur response. quiver(x,y,u,v) cannot plot it because u and v should be a matrix. But in my case I have only u (not v) which is a vector not a matrix.

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Answer 1

gubertoli 2016-10-4

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https://ww2.mathworks.cn/matlabcentral/answers/305751-ploting-vector-data-in-2d-or-3d#answer_237364

在 MATLAB Online 中打开

You can try:

plot3(x,y,z)

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josef vahab 2016-10-4

Capture.PNG

This doesn't work for my case since my data, for example x-Axis values, are not arranged in order. Trying plot3(x,y,z), attached figure is the result I have got.

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