I am working on some data which are 3D in dimensions. Using the PCA, I found the eigenvectors and eigenvalues which gives the direction of data spread. Sorry my maths is quite poor.
I want to plot the 3 planes (for visualization) that gives the 3 direction of the data spread for my report. I am using C++ thats why I cant use any plotting tools like matlab so I am writing my own.
How can I get the equation of the planes from the eigenvectors? The eigenvectors are direction so is it the normals of the plane? Equation of form Ax+by+cz+d = 0, what is will be the d value.