title: mat-radio-button not working
body: <p>I am creating an app using angular js material. I have included date picker properly, but unable to add mat-radio-button, I don't know why it's not showing.</p>
  
  <p>this is my HTML page</p>
  
  <pre><code>&lt;!doctype html&gt;
  &lt;html ng-app="datepickerBasicUsage"&gt;
    &lt;head&gt;
      &lt;script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.4/angular.js"&gt;&lt;/script&gt;
      &lt;script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.4/angular-animate.min.js"&gt;&lt;/script&gt;
      &lt;script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.4/angular-aria.min.js"&gt;&lt;/script&gt;
      &lt;script src="https://cdnjs.cloudflare.com/ajax/libs/angular-material/1.0.4/angular-material.js"&gt;&lt;/script&gt;
      &lt;script src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/t-114/assets-cache.js"&gt;&lt;/script&gt;
  
      &lt;link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/angular-material/1.0.4/angular-material.css"&gt;
  
      &lt;script src="app.js"&gt;&lt;/script&gt;
    &lt;/head&gt;
    &lt;body&gt;
  
    &lt;div ng-controller="AppCtrl" style='padding: 40px;'&gt;
      &lt;md-content&gt;
        &lt;h4&gt;Standard date-picker&lt;/h4&gt;
        &lt;md-datepicker ng-model="myDate" md-placeholder="Enter date"&gt;&lt;/md-datepicker&gt;
        &lt;h4&gt;Disabled date-picker&lt;/h4&gt;
        &lt;md-datepicker ng-model="myDate" placeholder="Enter date" disabled&gt;&lt;/md-datepicker&gt;
        &lt;h4&gt;Date-picker with min date and max date&lt;/h4&gt;
        &lt;md-datepicker ng-model="myDate" placeholder="Enter date"
         md-min-date="minDate" md-max-date="maxDate"&gt;&lt;/md-datepicker&gt;
  
         &lt;mat-radio-group&gt;
    &lt;mat-radio-button value="1"&gt;Option 1&lt;/mat-radio-button&gt;
    &lt;mat-radio-button value="2"&gt;Option 2&lt;/mat-radio-button&gt;
  &lt;/mat-radio-group&gt;
      &lt;/md-content&gt;
    &lt;/div&gt;
    &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>this is js code</p>
  
  <pre><code>angular.module('datepickerBasicUsage, MatRadioModule ', ['ngMaterial'])
  .controller('AppCtrl', function ($scope) {
    $scope.myDate = new Date();
    $scope.minDate = new Date(
      $scope.myDate.getFullYear(),
      $scope.myDate.getMonth() - 2,
      $scope.myDate.getDate());
    $scope.maxDate = new Date(
      $scope.myDate.getFullYear(),
      $scope.myDate.getMonth() + 2,
      $scope.myDate.getDate());
  });
  </code></pre>