Want to create subclass of Dataset class in Stats Toolbox: Why does the variable editor view of my new class look so unexpected?

I am trying to reate a sublcass of the Dataset Class in the Stats Toolbox. Specifically I am trying to create a class to reflect the data from a raman spectroscopy experiment.

I recently got some help (thank you very much to user OWR) with the constructor for this class but now I notice that the variable editor view of my ramandataset object looks like the following:

dataset|<1x1 dataset>|<1x1 dataset>| dataset|<1x1 dataset>|<1x1 dataset>|

rather than:

val =

sample1 sample2 2.3 2.4 4.5 4.1

etc...

Could someone shed some light on this behavior?

Thank you very much! Justin

classdef ramandataset < dataset
  properties
  ExperimentID
  SampleID
  ExciteWavelength
  DateTaken
  Apparatus
  end

    methods        %TODO: Set it up to handle datasets that are not of equal length using NaN
      function spec = ramandataset(varargin)
        %RAMANDATASET Class Constuctor
        % INPUT DATA: same way as if using the dataset class.      
          spec = spec@dataset(varargin{:});      
      end % END CONSTRUCTOR

    end % END CONSTRUCTOR METHODS

    methods
        function modspec = plus(varargin)
        %PLUS/RAMANDATASET  
        % Only 2 input arguments - First argument takes precedence, second
        % argument can only have a single spectra in it. 

            modspec = varargin{1};
            arg1 = varargin{1};
            arg2 = varargin{2};
            if nargin ==1
               error('ERROR: Not enough Input for Plus Operator');
            elseif nargin ==2
                if strcmp(class(arg1),'ramandataset')&&strcmp(class(arg2),'dataset')
                    argument1 = double(varargin{1});
                    argument2 = double(varargin{2});

                    for j = 1:size(argument1,2)/2
                        for i = 1:size(argument1,1)
                            index = find(argument1(:,2*j-1)==argument2(i,1));
                            if ~isempty(index)
                               argument1(index,2*j) = argument1(index,2*j) + argument2(i,2);
                            end %END IF
                        end %END FOR
                        replacementdata = argument1(:,2*j-1:2*j);
                        names = get(arg1,'VarNames');
                        modspec = replacedata(modspec,replacementdata,char(names{j}));
                    end %END FOR

                elseif strcmp(class(arg1),'ramandataset')&&strcmp(class(arg2),'double')

                elseif strcmp(class(arg2),'ramandataset')&&strcmp(class(arg1),'double')
                    error('ERROR: First Argument in plus() must be ramandataset');

                end %END IF   

            end %END IF
        end %END OVERLOADED PLUS()

    end % END OVERLOADING METHODS

end % END CLASSDEF

[Justin]

Sorry the formatting of my question at the top got screwed up, basically the output of the variable editor lists each element of as a <1x1 dataset> rather than listing the actual value.