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: spm_eeg_invert_display.m
    path of file: ./repos/spm
    
    the code of the file until where you have to start completion: function spm_eeg_invert_display(D,PST,Ndip)
% Displays conditional expectation of response (J)
% FORMAT spm_eeg_invert_display(D,PST,Ndip)
% FORMAT spm_eeg_invert_display(D,XYZ,Ndip)
% D    - 3D structure (ReML estimation of response (J) )
% PST  - peristimulus time (ms) - defaults to the PST of max abs(J)
%      - [Start Stop] (ms)     - invokes a movie of CSD
% XYZ  - dipole location of interest
%
% Ndip - number of dipole to display (default 512)
%__________________________________________________________________________
 
% Karl Friston
% Copyright (C) 2008-2022 Wellcome Centre for Human Neuroimaging

 
% Number of dipoles to display
%==========================================================================
try, PST;  catch, PST  = [];  end
try, Ndip; catch, Ndip = 512; end
 
% get condition
%--------------------------------------------------------------------------
if ~isfield(D, 'con') || D.con == 0
    con = 1;

    
function spm_eeg_invert_display(D,PST,Ndip)
% Displays conditional expectation of response (J)
% FORMAT spm_eeg_invert_display(D,PST,Ndip)
% FORMAT spm_eeg_invert_display(D,XYZ,Ndip)
% D    - 3D structure (ReML estimation of response (J) )
% PST  - peristimulus time (ms) - defaults to the PST of max abs(J)
%      - [Start Stop] (ms)     - invokes a movie of CSD
% XYZ  - dipole location of interest
%
% Ndip - number of dipole to display (default 512)
%__________________________________________________________________________
 
% Karl Friston
% Copyright (C) 2008-2022 Wellcome Centre for Human Neuroimaging

 
% Number of dipoles to display
%==========================================================================
try, PST;  catch, PST  = [];  end
try, Ndip; catch, Ndip = 512; end
 
% get condition
%--------------------------------------------------------------------------
if ~isfield(D, 'con') || D.con == 0
    con = 1;
else
    con = D.con;
end
 
% D - SPM data structure
%==========================================================================
model = D.inv{D.val};

con   = min(con,length(model.inverse.J));

try
    disp(model.inverse);
catch
    warndlg('please invert model')
    return
end