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: ft_connectivitysimulation.m
    path of file: ./repos/fecgsyn/subfunctions/data-generation/libs/fieldtrip
    
    the code of the file until where you have to start completion: function [simulated] = ft_connectivitysimulation(cfg)

% FT_CONNECTIVITYSIMULATION simulates channel-level ti
    
function to coefficients, the frequency axis should ideally start at 0, zero padding the spectral density');
  dfreq = mean(dfreq);
  npad  = freq(1)./dfreq;

  % update the freq axis and keep track of the frequency bins that are
  % expected in the output
  selfreq  = (1:numel(freq)) + npad;
  freq     = [(0:(npad-1))./dfreq freq];
  if isfull
    H = cat(3, zeros(siz(1),siz(2),npad), H);
  else
    H = cat(2, zeros(siz(1),npad), H);
  end