how do I call a member function in another member function in the same class in matlab ??

these two functions are both in the same methods of a class. Thank you so much!!!

[Rik]

This looks very connected to your previous question.

I have hardly ever worked with classes, but aren't methods treating each other as local functions? That would mean you can just call it.

Answer 1

[Eric]

There are two ways to call another method function from the same class.

First, you can use a dot/period to access the method from the class variable. Second, you can simply call the function and pass the class object as an argument.

Using MATLAB's Create a Simple Class Example as a basis, I've added the doBoth function below to illustrate both of these options.

 classdef BasicClass
    properties
       Value
    end
    methods
       function r = roundOff(obj)
          r = round([obj.Value],2);
       end
       function r = multiplyBy(obj,n)
          r = [obj.Value] * n;
       end
       function d = doBoth(obj,k)
          d = [obj.multiplyBy(k), roundOff(obj)];
       end
    end
 end

[Martin Zach]

Hi,

try "BasicClass.multiplyBy(k)" instead of "obj.multiplyBy(k)"->

if there is not instance yet, you have to make the methods Static

classdef BasicClass

properties

Value

end

methods (Static)

function r = roundOff(obj)

r = round([obj.Value],2);

end

function r = multiplyBy(obj,n)

r = [obj.Value] * n;

end

function d = doBoth(obj,k)

d = [BasicClass.multiplyBy(k), BasicClass.roundOff(obj)];

end

end

end

[Steven Lord]

That won't work in this scenario because both multiplyBy and roundOff need information from a specific instance. Static methods need to be able to be called without any instances of the class as inputs.

If I had an instance of the Human class, I could have a Static method named isMammal(). I don't need to know if there's a specific human we're discussing to know that whover it is, isMammal() must return true. But an isAdult() method could not be Static. The instance of Human representing me would return true for that method while ones representing a baby would return false.

Generally speaking, if your method must access any of the non-Constant properties of the class in which it is defined (or in a superclass) then conceptually it is not elgible to be Static.