<label ng-model="pref.active" btn-radio="'choceA'"> <input type="radio" name="groupName"> </label>
The btn-radio part is a STRING–It needs a valid string.
<label ng-model="pref.active" btn-radio="'choceA'"> <input type="radio" name="groupName"> </label>
The btn-radio part is a STRING–It needs a valid string.