If a node, or nodes, have previously been created as a node-set, they can be assigned a color. Coloring node-sets can be very helpful visually when working with a Bayes net, and is one of the style options available for improving the presentation and comprehension of a net. Example
How To: Choose Modify → NodeSet Properties (from the overhead menu or right-click on the net background). The subsequent dialog box contains a list of all the node-sets created within the Bayes net.
Using this dialog box you can:
Set Color: Before a color has been assigned to a user-defined node-set, an X will appear in the color swatch box next to its name. To choose or change the color of a node-set, click on it and click Set Color. A color palette will be displayed from which you can make your choice. Click Okay to dismiss the palette, and then click Apply or Okay in the NodeSet properties dialog box. You can also change the default color for the other nodes of your net at this time.
No Color: To remove the color of a node-set, click on it, then click No Color. The X that will appear in it’s color box indicates that this node-set has no assigned color, and when Netica is choosing a color for nodes, it will skip this node-set and move down to the next node-set in the list. To restore the node-set’s previous color, click on it and click Set Color. The last chosen color is remembered; hence you can just click Okay in the color palette which appears.
Change Priority of Color Displayed: If a node belongs to more than one node-set, the first node-set listed in the Properties dialog box will determine the color displayed. To change the color displayed, drag the node-set title up or down the list to the desired position.
Rename: To change the name of a node-set, select it’s name and click Rename. Type the new name into the dialog box that appears.
Delete Node-Set: To delete a node-set, click on it’s name and press the delete key.
For an example of a colored bayes net, click here.