Get all top-level packages
P = meta.package.getAllPackages
P = meta.package.getAllPackages is a static
method that returns a cell array of meta.package objects
representing all the top-level packages that are visible on the MATLAB® path
or defined as top-level built-in packages. You can access subpackages
using the Packages property of each meta.package object.
Note that the time required to find all the packages on the
path might be excessively long in some cases. You should therefore
avoid using this method in any code where execution time is a consideration. getAllPackages is
generally intended for interactive use only.