obability of the observations given the latent function, i.e. the GP (and the
  hyperparameters). All likelihood functions begin with the three
  letters <tt>lik</tt> and reside in the <a href="../lik"><tt>lik</tt>
  directory</a>. An overview is provided by the <a
  href="../likFunctions.m"><tt>likFunctions</tt></a> help function (type <tt>help
  likFunctions</tt> to get help). Some examples are 
  <a href="../lik/likGauss.m"><tt>likGauss</tt></a> the Gaussian likelihood for regression, 
  <a href="../lik/