title: MASS::lm.ridge coefficients
body: <p>I'm trying to perform ridge regression using the <code>lm.ridge</code> method. My question is how can I get the coefficients of the fitted model? I'm getting different results from calling:</p>
  
  <ul>
  <li><code>model$coef</code></li>
  <li><code>coef(model)</code></li>
  </ul>
  
  <p>Which is the correct one? Also, why do I get different results from calling:</p>
  
  <ul>
  <li><code>coef(model)</code> and looking at the 1st coefficient, vs.</li>
  <li><code>coef(model)[1]</code>?</li>
  </ul>