Class Hierarchy Constructor Syntax - Include all inherited properties;

I have a class with two parents. I am after a simpler constructor method that encapsulates all the inherited properties, example;

classdef signalEcho < signal & target

      properties
          deltaT
      end

      properties (Dependent)
          EchoCarrierFrequency
          EchoDutyCycle   
      end

      methods
          function [thisEcho] = signalEcho(thisSignal, thisTarget, deltaT)
              thisEcho = thisEcho@signal(thisSignal.CarrierFrequency, thisSignal.PulseRepFreq, thisSignal.DutyCycle);
              thisEcho = thisEcho@target(thisTarget.PositionX, thisTarget.PositionY, thisTarget.Velocity, thisTarget.Heading);
              if nargin == 3
                  thisEcho.deltaT = deltaT;
              end
          end

Would like to replace the constructor with;

methods
          function [thisEcho] = signalEcho(thisSignal, thisTarget, deltaT)
              thisEcho = thisEcho@signal(thisSignal);
              thisEcho = thisEcho@target(thisTarget);
              if nargin == 3
                  thisEcho.deltaT = deltaT;
              end
          end

When using the above method no inherited data is populated into the the signalEcho object.

Answer 1

[Steven Lord]

As per the "Initialize Objects Using Multiple Superclasses" section on this documentation page try removing the output argument from your calls to the constructors for the superclasses. So instead of:

thisEcho = thisEcho@signal(thisSignal.CarrierFrequency, thisSignal.PulseRepFreq, thisSignal.DutyCycle);

use:

thisEcho@signal(thisSignal.CarrierFrequency, thisSignal.PulseRepFreq, thisSignal.DutyCycle);