How store data from radio buttons in angular meteor

I use angular-meteor to build website (angularjs 1)
I have 2 collection and I want to build another collection shares fields with the other collections

here in the link I want to take check out attendeace for the students and record it in the new collection
so how I can store data from radio button in (ng-repeat)

  • {{student.name}}

    Present Absent Sick Late
      </li>
    </ul>
    

    also I have another problem when I put ($ctrl.check.optCheck) for all radio buuton
    Late
    and when I have in the views multiple

  • /
  • the radio butons will be as for one
  • only

    thanks