Adding Nodes
The toolbar buttons 
,
and 
are used for adding = 4 && typeof(BSPSPopupOnMouseOver) == 'function') BSPSPopupOnMouseOver(event);" class="BSSCPopup" onclick="BSSCPopup('X_PU_nature_node.htm');return false;">nature nodes (i.e. “chance” or “deterministic”
nodes), = 4 && typeof(BSPSPopupOnMouseOver) == 'function') BSPSPopupOnMouseOver(event);" class="BSSCPopup" onclick="BSSCPopup('X_PU_decision_node.htm');return false;">decision
nodes, or = 4 && typeof(BSPSPopupOnMouseOver) == 'function') BSPSPopupOnMouseOver(event);" class="BSSCPopup" onclick="BSSCPopup('X_PU_utility_node.htm');return false;">utility nodes (also known as “value” nodes)
respectively. When you click the appropriate button, and then move
the cursor over the = 4 && typeof(BSPSPopupOnMouseOver) == 'function') BSPSPopupOnMouseOver(event);" class="BSSCPopup" onclick="BSSCPopup('X_PU_active_window.htm');return false;">active net window, it will change to the
shape of the node to be added. Next click on the place in the window
where you want the node to appear, and it will be added there, with the
cursor returning to normal.
Alternate Adding Options: Besides the toolbar, you can add new nodes to your net in the following ways:
1. = 4 && typeof(BSPSPopupOnMouseOver) == 'function') BSPSPopupOnMouseOver(event);" class="BSSCPopup" onclick="BSSCPopup('X_PU_right_click.htm');return false;">Right-click on the = 4 && typeof(BSPSPopupOnMouseOver) == 'function') BSPSPopupOnMouseOver(event);" class="BSSCPopup" onclick="BSSCPopup('X_PU_background.htm');return false;">background and choose Modify → New Node and choose the desired node type from the list. For more info, see below.
2. Using the Overhead menu, choose Modify → Add to add a Nature, Decision, Utility, or constant node, or to add a new link.
3. Use a shortcut equivalent.
Multiple: To add a series of nodes, double-click on the toolbar button for the type of nodes you wish to add, or double-press f9 (i.e. press it twice in quick succession). The cursor will change to the shape of the node as before, but now it will be darkened indicating that a number of nodes may be added in a series.
To exit this node-adding mode, click the node-adding button
again, or press the node-adding Fx key again,
or click the 
button, or press the Pause/Break button (or click on a different
node-adding button or press a different node-adding key).
Node Types: Often the most useful way to add nodes is by = 4 && typeof(BSPSPopupOnMouseOver) == 'function') BSPSPopupOnMouseOver(event);" class="BSSCPopup" onclick="BSSCPopup('X_PU_right_click.htm');return false;">right-clicking, because then you can choose what type of node to add, instead of setting it later (through the dialog box).
Nature - Discrete DEFINITION
Nature - Boolean DEFINITION
Nature - Numeric Continuous CONTINUOUS VS. DISCRETE
Nature - Numeric Discrete
Decision DEFINITION
Decision - Boolean
Utility DEFINITION
Constant DEFINITION
Properties: When a node is first added it will be = 4 && typeof(BSPSPopupOnMouseOver) == 'function') BSPSPopupOnMouseOver(event);" class="BSSCPopup" onclick="BSSCPopup('X_PU_select_node.htm');return false;">selected. Whenever a node is selected you can press the enter key to bring up a dialog box for setting node properties, and when the dialog box first comes up, its field for setting the node’s name is selected for changing. This makes it possible to quickly add a node with a certain name. Just click the appropriately shaped cursor where you want the node to be, press the enter key, type the name, and then press the enter key again. There is no need to think about the dialog box or wait for it to be fully drawn.
Node Palette: You can use the Node Palette to store nodes that you use frequently. To store a node, copy it and choose Window → Node Palette, which will bring up a window to paste the node. Whenever you use Netica, you can open the node palette to retrieve your stored nodes.
Node Groups: To help with visual organization, you can group nodes together, to form node-sets.
Deleting
Nodes: If you want to delete a node from your net, you can simply
highlight it and press the Delete or the Backspace buttons. However, if the
node was linked to other nodes, there are some things to consider before
deleting it entirely, as its deletion could affect your CPTs. More Info