title: Set Material Design Lite radio button option with jquery
body: <p>I have the following radio buttons in MDL. I would like to know how to set one of the options with jquery. I've tried various ways found on SO or the web.... but no one is working.</p>
  
  <pre><code>&lt;label class="mdl-radio mdl-js-radio mdl-js-ripple-effect" for="sex-option-1"&gt;
      &lt;input type="radio" id="sex-option-1" class="mdl-radio__button" name="sex-options" value="1"&gt;
      &lt;span class="mdl-radio__label"&gt;Male&lt;/span&gt;
  &lt;/label&gt;
  
  &lt;label class="mdl-radio mdl-js-radio mdl-js-ripple-effect" for="sex-option-2"&gt;
     &lt;input type="radio" id="sex-option-2" class="mdl-radio__button" name="sex-options" value="2"&gt;
     &lt;span class="mdl-radio__label"&gt;Female&lt;/span&gt;
  &lt;/label&gt;
  </code></pre>
  
  <p>MDL version is 1.1.1</p>
  
  <p>Thanks in advance.</p>