It is possible to associate a temporal index with each node. This index is a positive or null integer. It allows to define a temporal order between the nodes, which is taken into account by the learning algorithms.
A node with a temporal index greater than the temporal index of another node cannot be its ancestor.
Editing of the temporal indices can be done node-by-node with the Node Editor or globally through the contextual menu of the graph which gives access to the following global editor:
The table is sortable by clicking on the header of each column.
If at least one node has a temporal index, the indicator is displayed in the status bar of the network. A click on this icon displays the previous dialog box.
The Import button allows importing a list of temporal indices from a dictionary as in Import Dictionary menu.
The Export button allows exporting the list of temporal indices in a dictionary as in Export Dictionary menu.