Build and return display footer text
s = getFooter(obj)
Override this method to create a custom footer. The overriding implementation must support all states of the object, including scalar, nonscalar, empty, and deleted (if obj is an instance of a handle class).
Footer text, returned as a string.
The default implementation returns an empty string
To learn about attributes of methods, see Method Attributes in the MATLAB® Object-Oriented Programming documentation.