</tt> into <a href="../cov/covFITC.m">covFITC.m</a>
and call <a href="../gp.m">gp.m</a> with the inference method
<a href="../inf/infFITC.m">infFITC.m</a> as demonstrated by
the following lines of code.
</p>

<pre>
  nu = fix(n/2); u = linspace(-1.3,1.3,nu)';
  covfuncF = {@covFITC, {covfunc}, u};
  [mF s2F] = gp(hyp, @infFITC, meanfunc, covfuncF, likfunc, x, y, z);
</pre>

<p>
We define equispaced inducing points <tt>u</tt> that are shown in the
figure as black circles. Note that the predictive variance is