Class : Error while assigning variables in constructor

I am getting error while assigning variables in classes :

 properties
        % The antenna object from the phased array toolbox
        ant = [];
        
        % Frequency in Hz
        fc = 0;   
        
    end
    
    methods
        function myobj = ElemWithAxes(fc, ant)
            % Constructor 
            % Inputs:  fc is the carrier frequency in Hz and ant is 
            % an antenna compatible with the phased array toolbox.  It must
            % support the ant.pattern() method.
            
            % TODO:  Assign fc and ant to the class variables
            myobj.fc = fc;
            myobj.ant = ant;
           
        end

I get the following :

Not enough input arguments.

Error in ElemWithAxes (line 40)

myobj.fc = fc;

Where does the problem lie ?

Answer 1

[per isakson]

How did you call the constructor?

I added a few line to make your code a syntactically correct class. And tested the constructor.

ewa = ElemWithAxes(1,2)

ewa = 
  ElemWithAxes with properties:

    ant: 2
     fc: 1

ewa = ElemWithAxes()

Not enough input arguments.

Error in ElemWithAxes (line 17)
myobj.fc = fc;

Did you call the constructor without input argument values?