Show equation on the 3D Plot

Greeting All

Can I get multiple regression equation in matlab code and show the equation on the 3D Plot.

I ihave three axeis X, Y , and Z.

Best regards

Samir

[Walter Roberson]

text() can be passed x, y, and z coordinates to place text at.

But more common would be to create a character form of the equation and title() it.

[Samir Albadri]

Thanks for your quick replay.

What I need is to get the multiple regression equation from the data by using a code for that and then show it on the 3D plot.

Regards

Answer 1

[Prabhanjan Mentla]

Hi,

I assume the question needs two things one is getting the equation and then plotting on to the figure.

Multilinear regression (3d plot) may be solved using code in this link.

The below code can be added in the above link(after zlabel) to get figure title.

caption = sprintf('y = %f + %f * x1 + %f * x2 + %f * x1*x2', b(1),b(2),b(3),b(4)); 
text(15,185,45, caption, 'FontSize', 10, 'Color', 'r', 'FontWeight', 'bold'); 

You may get similar type of figure like below.

Hope this helps.

[Mohammed Saifuddin Ustad]

hey prabhanjan this is similar to a question i have

can you see if you can help?

https://www.mathworks.com/matlabcentral/answers/1973929-i-have-xyz-data-from-which-i-want-to-formulate-an-equation

Answer 2

[Samir Albadri]

Hello

I attach the code. I used. I tried what you recomended but for somehow it did not work

Can you see it

Thanks in advance