Normal vector from points in 3d space

Hey,

I'm trying to find a normal vector from a set of point in 3d space. The points are given by their x, y and z coordinates. The coordinates might not all lie in a the same plane, therefore the i would like to find the normal vector for the average plane.

Answer 1

[Jan]

See

• https://www.mathworks.com/matlabcentral/fileexchange/22042-plane_fit
• https://www.mathworks.com/matlabcentral/answers/496215-svd-and-basis-of-a-plane#answer_406036

Answer 2

[Matt J]

See planarFit() in ,

https://www.mathworks.com/matlabcentral/fileexchange/87584-object-oriented-tools-for-fitting-conics-and-quadrics