Constraining a VariableArray

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  Hello,

  I'm trying to constrain a VariableArray such that the sum of all the elements equals zero. How can I do this in Infer.net? The code I've tried (which ends up constraining all the elements individually to zero) is:

  Variable<double> total = Variable.Observed<double>(0);
  Variable<double> element;
  using (Variable.ForEach(index))
  {
      element = Variable.Copy<double>(variablearray[index]);
      total = total + element;
  }
  Variable.ConstrainEqual(0, total);

  Thanks very much!
  

  Tuesday, August 26, 2014 9:00 AM