title: Avoid Matlab estimate function to print on command windows
body: <p>Hello I have this script </p>
  
  <pre><code>load Data_GlobalIdx1                             % Import daily index closings
  
  nIndices = size(Data,2);                         % # of indices
  weights  = repmat(1/nIndices, nIndices, 1);      % Equally weighted portfolio
  returns = price2ret(Data,[],'Periodic') * weights;   % Arithmetic returns
  returns = log(1 + returns);                          % Logarithmic returns
  T       = size(returns, 1);                          % Historical sample size
  model   = arima('AR', NaN, 'Distribution', 't', 'Variance', egarch(1,1));
  options = optimset('fmincon');
  options = optimset(options, 'Display'  , 'off', 'Diagnostics', 'off', ...
                          'Algorithm', 'sqp', 'TolCon'     , 1e-7);
  
  fit = estimate(model, returns, 'options', options);  % Fit the model
  </code></pre>
  
  <p>When I launch the last function MATLAB pritns results of ARMA/GARCH on the command windows. I don't want that. Could anyone suggest me how to stop it ? Exapmple of what it prints below:</p>
  
  <pre><code>ARIMA(1,0,0) Model:
  --------------------
  Conditional Probability Distribution: t
  
                                Standard          t     
   Parameter       Value          Error       Statistic 
  -----------   -----------   ------------   -----------
   Constant    0.000213763   0.000124705        1.71414
      AR{1}       0.185495     0.0199051        9.31898
        DoF        12.6492        2.7037        4.67846
  
  
  EGARCH(1,1) Conditional Variance Model:
  --------------------------------------
  Conditional Probability Distribution: t
  
                                Standard          t     
   Parameter       Value          Error       Statistic 
  -----------   -----------   ------------   -----------
   Constant      -0.133661      0.030071       -4.44486
   GARCH{1}       0.986387    0.00309071        319.146
   ARCH{1}        0.133832     0.0190058        7.04166
   Leverage{1}   -0.091885     0.0121515       -7.56164
   DoF             12.6492        2.7037        4.67846
  </code></pre>
  
  <p>Thank you </p>