quation}\]</div>
<p>for <span class="arithmatex">\(\gamma \in [0,1]\)</span>.</p>
<p>Following the same arguments in <a href="../ex18-05/">Ex. 18.5</a>, it's easy to show that <span class="arithmatex">\(\eqref{eq:18-6a}\)</span> and its regularized version are invariant under a coordinate rotation. Hence we can once again use the SVD construction and replace the training <span class="arithmatex">\(x_i\)</span> by their corresponding <span class="arithmatex">\(r_i\)</span>, and fit the regularized model in t