How to convert Variable<Vector> to VariableArray<double>? (Migrated from community.research.microsoft.com)

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  John Guiver replied on 07-29-2010 11:20 AM

  Here's an example. Let me know if you need further help.

  John

  int dim = 5;
  int[] indices = Enumerable.Range(0, dim).ToArray();
  
  Variable<Vector> v = Variable.VectorGaussianFromMeanAndPrecision(new Vector(dim), PositiveDefiniteMatrix.Identity(dim));
  Range r = new Range(dim);
  var indVar = Variable.Observed<int>(indices, r);
  var va = Variable.Array<double>(r);
  va[r] = Variable.GetItem(v, indVar[r]);

  Friday, June 3, 2011 6:14 PM
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  bcao replied on 07-29-2010 2:11 PM

  Thank you very much for your help!

  Friday, June 3, 2011 6:14 PM
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  minka replied on 01-14-2011 9:45 AM

  In version 2.4, there is now a simpler and more efficient way to do this, using Variable.ArrayFromVector.  You can go the other direction using Variable.Vector(array).

  • Marked as answer by Microsoft Research Friday, June 3, 2011 6:14 PM

  Friday, June 3, 2011 6:14 PM