The planetary gear trains with single and double planet carriers, 1⁓3 degrees of freedom and up to ten components

This is a database of planetary gear trains (PGTs), containing containing the adjacency matrices of PGTs with single and double planet carriers, and saved in a mat file. The data under different files are distinguished by the degree of freedom and component. For example, sxxj1f3g stores the data of PGTs with double planet carriers, 1 degree of freedom and 3 components.dxxj1f3g stores the data of PGTs with single planet carrier, 1 degree of freedom and 3 components.