Running streams

Once you specify the required options for streams and connect the required nodes, you can run the stream by running the data through nodes in the stream. There are several ways to run a stream within IBM® SPSS® Modeler. You can:

• Click Run on the Tools menu.
• Click one of the Run... buttons on the toolbar. These buttons allow you to run the entire stream or simply the selected terminal node. See the topic IBM SPSS Modeler Toolbar for more information.
• Run a single data stream by right-clicking a terminal node and clicking Run on the pop-up menu.
• Run part of a data stream by right-clicking any non-terminal node and clicking Run From Here on the pop-up menu. Doing so causes only those operations after the selected node to be performed.

To halt the running of a stream in progress, you can click the red Stop button on the toolbar, or select Stop Execution from the Tools menu. Note that clicking the Stop button one time tells Modeler to have Modeler Server stop the execution. In some cases execution will stop immediately, but in other cases it must finish the current step before it can stop the entire execution. So time will vary. If you double-click the button, the server connection is dropped and a new connection is established. In most cases, this will close all server processes (and it may take some time). But in some cases, some server process won't be stopped.

If any stream takes longer than three seconds to run, the Execution Feedback dialog box is displayed to indicate the progress.

Some nodes have further displays giving additional information about stream execution. Select the corresponding row in the dialog box to see these displays. The first row is selected automatically.