ion (in prediction), hence, only the GP mean function is considered. Therefore, this representation is equivalent to a regularized RBF network. If gpmodel.nigp exists, individial noise contributions are added.</p><pre class="language-matlab"><span class="keyword">function</span> [M, S, V, dMdm, dSdm, dVdm, dMds, dSds, dVds, dMdi, dSdi, dVdi, <span class="keyword">...</span>
                   dMdt, dSdt, dVdt, dMdX, dSdX, dVdX] = gp2d(gpmodel, m, s)
</pre><p><b>Input arguments:</b></p><pre class="language-m