title: how to delete an object's attribute from ruby array
body: <p>I have a students array like this</p>
  
  <pre><code>[#&lt;Student id: 2, admission_no: "2", gender: "m", blood_group: "A"&gt;,#&lt;Student id: 3, admission_no: "3", gender: "m", blood_group: "A"&gt;]
  </code></pre>
  
  <p>I am getting this array via named_scope .... So is there any way to select only required attributes with named scope...
  I need to delete admission_no and blood_group from this and return an array only with students id and gender.. How is it possible. Iam using rails2.3</p>