title: Lablel for md-radio-group
body: <p>I have a group of radio buttons in an Angular 4 Material app:</p>
  
  <pre><code>&lt;md-radio-group fxLayout fxLayoutAlign="center center" fxLayoutGap="30px"&gt;
      &lt;md-radio-button value="1"&gt;Date&lt;/md-radio-button&gt;
      &lt;md-radio-button value="2"&gt;Status&lt;/md-radio-button&gt;
      &lt;md-radio-button value="3"&gt;From&lt;/md-radio-button&gt;
      &lt;md-radio-button value="4"&gt;To&lt;/md-radio-button&gt;
  &lt;/md-radio-group&gt;
  </code></pre>
  
  <p>I went through the docs and samples and wasn't able to figure out how to give a label to this group. I need something like this but with proper styling:
  <a href="https://i.stack.imgur.com/pl0gk.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/pl0gk.jpg" alt="enter image description here"></a></p>
  
  <p>What is the intended way in Angular Material of adding a label to a radio group?</p>
  
  <p>Obviously, we could add a <code>label</code> and style it from scratch, but it doesn't look terribly productive for the framework of heavily styled components.</p>