Node Kind

Directly below the name entry area of the node dialog box is a selector .  Click on it to bring up the node kinds menu:

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You can use it to turn the node into a nature node, constant node, decision node, or utility node (also known as a “value node”).

Nature nodes are called deterministic nodes when their relationship with their parents is deterministic, or chance nodes when the relationship is probabilistic.  Netica will automatically determine if a nature node is deterministic and if so, will draw a thick border when in labeled-box style, and color it in the "-Deterministic" node-set color (if you haven't made other node-sets higher priority).

When a net is composed entirely of nature nodes it is called a Bayes net (also known as a “belief network”).  If it also has decision and utility nodes, it is called a decision net (also known as an “influence diagram”). Decision nodes represent variables that the decision maker can control, and utility nodes represent variables the decision maker is trying to optimize.

Alternative Ways:  You can also change node kinds straight from the net window without using a node dialog box.  To do this, select a node or set of nodes you wish to change, and while holding down the ctrl key click the toolbar button indicating the kind of node you wish them to become: for nature nodes, for decision nodes, or for utility nodes.

Or, right-click over the node (or selected nodes) and choose Modify → Node Kind.