Building Process Flow Diagrams

Deleting Nodes from a Diagram

To delete a node from a process flow diagram:

Right-click on the node icon to open a pop-up menu.
Select the Delete pop-up menu item. A verification window appears that asks you to verify that you want to delete this node. If you select OK, then the node is removed from the process flow diagram. If you select Cancel, then the node remains in the process flow diagram.

Note: This task can also be performed by selecting the node and using the Delete tool icon from the toolbox. [cautionend]

To restore the deleted node, right-click in an open area of the Diagram Workspace area and select the Undelete pop-up menu item. The node is copied to the Diagram Workspace, but any previous connections are lost. You must redraw your node connections.

To delete multiple nodes:

Select a node icon that you want to delete, and then SHIFT-click or CTRL-click the remaining node icons that you want to delete. The selected nodes become highlighted. Alternatively, you can select multiple nodes by dragging your mouse pointer around the nodes that you want to delete. A box appears around the selected node icons. This technique is referred to as "rubber banding" nodes.
Allow the mouse pointer to remain on the selected icons, and then right-click to open a pop-up menu.
Select the Delete pop-up menu item. A verification window appears that asks you to verify that you want to delete these nodes. If you select OK, then the nodes and their connections are removed from the process flow diagram. If you select Cancel, then the nodes remain in the process flow diagram.

To delete all nodes in the process flow diagram:

From the main menu, select Edit Select all
After all the nodes are selected, from the main menu select Edit Delete or click the Delete icon from the toolbox.

Note: You cannot restore a multiple-node deletion. [cautionend]

When you delete a predecessor node in a process flow diagram, the results are still available in the successor node or nodes. It is important to note that the results may not be reliable or accurate. For example, assume that you defined the following process flow diagram and ran the flow from the Regression node:

[Small flow showing Input Data Source node with SAMPSIO.DMAGECR connected to Data Partition node connected to Regression node.]

You then decide to delete the existing Data Partition node and add a new Data Partition node to the flow. The Regression node will still store the results from the first run of the flow. To obtain the updated regression results, you need to re-run the entire process flow diagram.

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