You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: display.m
    path of file: ./repos/bspm/thirdparty/spm12/@meeg
    
    the code of the file until where you have to start completion: function str = display(this)
% Method for displaying information about an meeg object
% FORMAT display(this)
% _______________________________________________________________________

    
function str = display(this)
% Method for displaying information about an meeg object
% FORMAT display(this)
% _______________________________________________________________________
% Copyright (C) 2008-2012 Wellcome Trust Centre for Neuroimaging

% Vladimir Litvak
% $Id: display.m 5025 2012-10-31 14:44:13Z vladimir $

str = ['SPM M/EEG data object\n'...
    'Type: ' type(this) '\n'...
    'Transform: ' transformtype(this) '\n'...
    num2str(nconditions(this)), ' conditions\n'...
    num2str(nchannels(this)), ' channels\n'
    ];

if strncmpi(transformtype(this),'TF',2)
    str = [str num2str(nfrequencies(this)), ' frequencies\n'];
end