Methods of an object can only be called if at least one of the inputs is an instance of the object, or the method is a static method. Let's take a look at the method that you're trying to call (with the signature corrected.)
function y = myfunction2 (myobject)
y = myfunction1(myobject.myproperty)
end
Since this method only accepts one input, myobject, and is not static the only way that it can be called is if myobject isa MyClass. You're calling myfunction1 with whatever the myproperty property of the MyClass object contains; in this case, that would be a cell array. Since you're not calling myfunction1 with an object that isa MyClass, you can't call the method.
There are a couple potential solutions:
- Call myfunction1 with the myobject object and let myfunction1 extract the property value from the object itself.
- Make myfunction1 a class-related function in the MyClass class file rather than a method. Note that it would not be visible/accessible outside the class if you did this.
- If myfunction1 can operate without an instance of the class, you could make it a static method.
