Functions Inside Class Definition Files
Just as you can define local functions in a script file or function file, you can also
define local functions inside a
classdef file. Define these functions
outside of the
classdef block, but in the same file as the class
definition. You can call these functions from anywhere in the same file, but they are not
visible outside of the file in which you define them.
Local functions in
classdef files are useful for utility functions
that you use only within that file. For example, this code defines
myUtilityFcn outside the
classdef MyClass properties PropName end methods function obj = method1(val) adjustedVal = myUtilityFcn(val) ... end end end % End of classdef function out = myUtilityFcn(in) ... end
When you call
MyClass, the method first uses
myUtilityFcn to perform some preprocessing on the input argument
before performing any other actions.
Unlike methods, these functions do not require an instance of the class as an input, but they can take or return arguments that are instances of the class and access the members of those instances, including private members. However, if a function inside a class definition file needs direct access to class members, consider defining the function as a method of the class instead.