plotting a plane in three dimensions including data points

Question

cgo 2017-12-7

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https://ww2.mathworks.cn/matlabcentral/answers/371686-plotting-a-plane-in-three-dimensions-including-data-points

编辑： cui,xingxing 2024-4-27

Hi,

I have a plane obtained via regression. Let's say this is z = 2x + 3y + 4. I want to plot this plane AND the data points. How do I do this?

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Answer 1

Erivelton Gualter 2018-10-22

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https://ww2.mathworks.cn/matlabcentral/answers/371686-plotting-a-plane-in-three-dimensions-including-data-points#answer_342803

在 MATLAB Online 中打开

Run the following code:

[x y] = meshgrid(-10:1:10);
z = 2.*x + 3.*y + 4;
surf(x,y,z);

To add the data you can add the following lines:

hold on;
plot3(DataX, DataY, DataZ);

You can check the meshgrid and surf function in the following links:

<http://www.mathworks.com/access/helpdesk/help/techdoc/ref/meshgrid.shtml>

http://www.mathworks.com/access/helpdesk/help/techdoc/ref/meshgrid.shtml

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Answer 2

cui,xingxing 2022-8-25

1
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/371686-plotting-a-plane-in-three-dimensions-including-data-points#answer_1032860

编辑：cui,xingxing 2024-4-27

https://www.mathworks.com/matlabcentral/answers/101174-how-can-i-generate-a-plane-surface-in-matlab

repeated question.

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