title: How to filter my data? (ng-grid)
body: <p>I think this is most likely very simple but I cannot find any clear documentation on how to add a filter outside of the 'filterText' that is shown on their website. What I am trying to do is something as simple as this: </p>
  
  <pre><code>$scope.filterOptions = {
      filter: $scope.myFilter,  // &lt;- How to do something like this? 
      useExternalFilter: true
  }
  
  $scope.gridOptions = {
          data: 'entries',
          enableColumnResize: false,
          multiSelect: false,
          enableSorting: false,
          selectedItems: $scope.selectedEntries,
          filterOptions: $scope.filterOptions
  }
  
  $scope.lowerLimit = 50;
  // My Filter
  $scope.myFilter = function(entry) { 
      if (entry &lt; $scope.lowerLimit) {
          return false; 
      }
      return true;
   }
  </code></pre>
  
  <p>Edit: Or maybe if I could filter the datasource somehow? I tried this: </p>
  
  <pre><code>$scope.gridOptions = {
          data: 'entries | filter: myFilter',
          enableColumnResize: false,
          multiSelect: false,
          enableSorting: false,
          selectedItems: $scope.selectedEntries,
  }
  </code></pre>
  
  <p>But it is throwing quite a few errors. </p>