Russell Almond - 2014-03-22

Thinking about this some more, I not only need the value of the node, but also the value of the nodes in the Markov blanket. This may be fairly large, for examle in the case of the variance parameter of a hierarchical model with a large number of units. In this case, I probably only need a sample of them (e.g., the first 10 units in the array). Trying to push that into a general rule is a bit tricky though.